Back to results
US 5,852,654 AGranted
Coupling device for use with a computer system
AssigneeSamsung Electronics Co., Ltd.
InventorMoon-Jong Song
Life of this patent
Estimating the term…
Abstract
A coupling device capable of telephone function for use with a computer system is disclosed. The coupling device incorporates internally equipped speakers so as to save space and a telephone speech network for enabling a user working on a computer system to utilize a telephone function. Accordingly, when the user is wanted on the phone, there is no need to stop working nor to surrender to any inconvenience in terms of holding a telephone set on the shoulder so as to continue work. A variety of functions embodied by the combination of a computer sound generator, a switching circuit and a telephone control circuit enhances the usage of a computer system.
Claims22
A coupling device, for providing a telephone function for a computer system, said coupling device comprising:
- mounting means integrally formed on a top surface of said coupling device for attaching to and detaching from a lower portion of a video display monitor;
- a loudspeaker internally incorporated in said coupling device for generating audible sounds;
- a control console panel for selectively switching between said telephone function and an audio function;
- a plurality of input-output terminals provided for signal input to and signal output from a computer sound generator and a telephone speech network;
- and
- a sound control circuit for coupling signals output from said computer sound generator and said telephone speech network to said loudspeaker;
- said sound control circuit comprising:
- a telephone control circuit for controlling input signals applied to and output signals received from a telephone cord;
- an amplifier circuit for amplifying a signal from one of said telephone control circuit and said computer sound generator, and for controlling a volume of an amplified signal generated at an output terminal of said amplifier circuit;
- a speaker controller for selectively generating one of a signal output from said amplifier circuit and a signal output from said telephone control circuit for transmission to said loudspeaker;
- a switching controller coupled to said telephone control circuit, said computer sound generator and said amplifier circuit for selectively switching said signal output from said telephone control circuit and said signal output from said computer sound generator for transmission to said amplifier circuit;
- and
- a signal input terminal for applying a signal input from said telephone control circuit said computer sound generator and an external microphone to said switching controller;
- said telephone control circuit comprising:
- a bridge circuit coupled to said telephone cord across a network comprising a varistor and a pair of induction coils;
- a piezoelectric controller coupled to said pair of induction coils for driving and controlling a piezoelectric speaker;
- a dial circuit coupled to an output terminal of said bridge circuit via a first switch;
- a dial telephone circuit connected to said first switch for controlling a telephone set;
- and
- a speaker phone circuit coupled to said output terminal of said bridge circuit via a second switch.
17 more elements
A coupling device for providing a telephone function for a computer system, said coupling device comprising:
- mounting means integrally formed on a top surface of said coupling device for attaching to and detaching from a lower portion of a video display monitor;
- loudspeaker means internally incorporated in said coupling device for generating audible sounds;
- control console panel means for selectively switching between said telephone function and an audio function;
- a plurality of input-output terminals for receiving signal inputs from and for sending signal outputs to a computer sound generator and a telephone speech network;
- and sound control circuit means for coupling signal inputs received from said computer sound generator and said telephone speech network to said loudspeaker means;
- wherein said sound control circuit means comprises a telephone control circuit for controlling input and output signals from and to a telephone cord;
- and
- wherein said telephone control circuit comprises a bridge circuit coupled to said telephone cord for receiving said input signals therefrom and for sending said output signals thereto, a piezoelectric controller connected between said telephone cord and a piezoelectric system for driving said piezoelectric system, telephone circuitry connected to said bridge circuit via an on/off-hook switch for controlling a telephone set connected to said telephone circuitry, and a speaker phone circuit connected to said bridge circuit via an on/off switch;
- wherein said telephone circuitry comprises a dial circuit connected to said bridge circuit via said on/off-hook switch, and a dial telephone circuit connected between said on/off-hook switch and said speaker phone circuit, said dial telephone circuit being connected to said telephone set.
6 more elements
A coupling device for providing a telephone function for a computer system, said coupling device comprising:
- mounting means integrally formed on a top surface of said coupling device for attaching to and detaching from a lower portion of a video display monitor;
- loudspeaker means internally incorporated in said coupling device for generating audible sounds;
- control console panel means for selectively switching between said telephone function and an audio function;
- a plurality of input-output terminals for receiving signal inputs from and for sending signal outputs to a computer sound generator and a telephone speech network;
- and sound control circuit means for coupling signal inputs received from said computer sound generator and said telephone speech network to said loudspeaker means;
- wherein said sound control circuit means comprises a telephone control circuit for controlling input and output signals from and to a telephone cord;
- and
- wherein said telephone control circuit comprises a bridge circuit coupled to said telephone cord for receiving said input signals therefrom and for sending said output signals thereto, a piezoelectric controller connected between said telephone cord and a piezoelectric system for driving said piezoelectric system, telephone circuitry connected to said bridge circuit via an on/off-hook switch for controlling a telephone set connected to said telephone circuitry, and a speaker phone circuit connected to said bridge circuit via an on/off switch;
- said sound control circuit means further comprising:
- an amplifier circuit for amplifying a signal output from one of said telephone control circuit and said computer sound generator, and for controlling a volume of an amplified signal generated at an output terminal of said amplifier circuit;
- a speaker controller for selectively generating one of a signal output from said amplifier circuit and a signal output from said telephone control circuit for transmission to said loudspeaker means;
- a switching controller coupled to said telephone control circuit, said computer sound generator and said amplifier circuit for selectively switching said signal inputs from said telephone control circuit and from said computer sound generator for transmission to said amplifier circuit;
- and
- a signal input terminal for applying a signal input from said telephone control circuit, said computer sound generator and an external microphone to said switching controller;
- wherein said switching controller comprises an audio amplifier for amplifying said signal input from said signal input terminal to generate a left voice signal and a right voice signal at output terminals of said switching controller.
12 more elements
A coupling device for providing a telephone function for a computer system, said coupling device comprising:
- mounting means integrally formed on a top surface of said coupling device for attaching to and detaching from a lower portion of a video display monitor;
- loudspeaker means internally incorporated in said coupling device for generating audible sounds;
- control console panel means for selectively switching between said telephone function and an audio function;
- a plurality of input-output terminals for receiving signal inputs from and for sending signal outputs to a computer sound generator and a telephone speech network;
- and sound control circuit means for coupling signal inputs received from said computer sound generator and said telephone speech network to said loudspeaker means;
- wherein said sound control circuit means comprises a telephone control circuit for controlling input and output signals from and to a telephone cord;
- and
- wherein said telephone control circuit comprises a bridge circuit coupled to said telephone cord for receiving said input signals therefrom and for sending said output signals thereto, a piezoelectric controller connected between said telephone cord and a piezoelectric system for driving said piezoelectric system, telephone circuitry connected to said bridge circuit via an on/off-hook switch for controlling a telephone set connected to said telephone circuitry, and a speaker phone circuit connected to said bridge circuit via an on/off switch;
- said sound control circuit means further comprising:
- <an amplifier circuit for amplifying a signal output from one of said telephone control circuit and said computer sound generator, and for controlling a volume of an amplified signal generated at an output terminal of said amplifier circuit;
- a speaker controller for selectively generating one of a signal output from said amplifier circuit and a signal output from said telephone control circuit for transmission to said loudspeaker means;
- a switching controller coupled to said telephone control circuit, said computer sound generator and said amplifier circuit for selectively switching said signal inputs from said telephone control circuit and from said computer sound generator for transmission to said amplifier circuit;
- and
- a signal input terminal for applying a signal input from said telephone control circuit, said computer sound generator and an external microphone to said switching controller;
- wherein said switching controller comprises a switch for selectively transmitting said signal input from said signal input terminal to one of a speaker phone circuit, said computer sound generator and an audio amplifier.
12 more elements
A coupling device for providing a telephone function for a computer system, said coupling device comprising:
- mounting means integrally formed on a top surface of said coupling device for attaching to and detaching from a lower portion of a video display monitor;
- loudspeaker means internally incorporated in said coupling device for generating audible sounds;
- control console panel means for selectively switching between said telephone function and an audio function;
- a plurality of input-output terminals for receiving signal inputs from and for sending signal outputs to a computer sound generator and a telephone speech network;
- and sound control circuit means for coupling signal inputs received from said computer sound generator and said telephone speech network to said loudspeaker means;
- wherein said sound control circuit means comprises a telephone control circuit for controlling input and output signals from and to a telephone cord;
- and
- wherein said telephone control circuit comprises a bridge circuit coupled to said telephone cord for receiving said input signals therefrom and for sending said output signals thereto, a piezoelectric controller connected between said telephone cord and a piezoelectric system for driving said piezoelectric system, telephone circuitry connected to said bridge circuit via an on/off-hook switch for controlling a telephone set connected to said telephone circuitry, and a speaker phone circuit connected to said bridge circuit via an on/off switch;
- said sound control circuit means further comprising:
- an amplifier circuit for amplifying a signal output from one of said telephone control circuit and said computer sound generator, and for controlling a volume of an amplified signal generated at an output terminal of said amplifier circuit;
- a speaker controller for selectively generating one of a signal output from said amplifier circuit and a signal output from said telephone control circuit for transmission to said loudspeaker means;
- a switching controller coupled to said telephone control circuit, said computer sound generator and said amplifier circuit for selectively switching said signal inputs from said telephone control circuit and from said computer sound generator for transmission to said amplifier circuit;
- and
- a signal input terminal for applying a signal input from said telephone control circuit, said computer sound generator and an external microphone to said switching controller;
- said switching controller comprising:
- a first switch for selectively transmitting said signal input from said signal input terminal to one of a speaker phone circuit, said computer sound generator and an audio amplifier;
- and
- a second switch for selectively transmitting a voice signal input from said telephone speech network to said audio amplifier.
15 more elements
A coupling device for providing a telephone function for a computer system, said coupling device comprising:
- mounting means integrally formed on a top surface of said coupling device for attaching to and detaching from a lower portion of a video display monitor;
- loudspeaker means internally incorporated in said coupling device for generating audible sounds;
- control console panel means for selectively switching between said telephone function and an audio function;
- a plurality of input-output terminals for receiving signal inputs from and for sending signal outputs to a computer sound generator and a telephone speech network;
- and sound control circuit means for coupling signal inputs received from said computer sound generator and said telephone speech network to said loudspeaker means;
- wherein said sound control circuit means comprises a telephone control circuit for controlling input and output signals from and to a telephone cord;
- and
- wherein said telephone control circuit comprises a bridge circuit coupled to said telephone cord for receiving said input signals therefrom and for sending said output signals thereto, a piezoelectric controller connected between said telephone cord and a piezoelectric system for driving said piezoelectric system, telephone circuitry connected to said bridge circuit via an on/off-hook switch for controlling a telephone set connected to said telephone circuitry, and a speaker phone circuit connected to said bridge circuit via an on/off switch;
- said sound control circuit means further comprising:
- an amplifier circuit for amplifying a signal output from one of said telephone control circuit and said computer sound generator, and for controlling a volume of an amplified signal generated at an output terminal of said amplifier circuit;
- a speaker controller for selectively generating one of a signal output from said amplifier circuit and a signal output from said telephone control circuit for transmission to said loudspeaker means;
- a switching controller coupled to said telephone control circuit, said computer sound generator and said amplifier circuit for selectively switching said signal inputs from said telephone control circuit and from said computer sound generator for transmission to said amplifier circuit;
- and
- a signal input terminal for applying a signal input from said telephone control circuit, said computer sound generator and an external microphone to said switching controller;
- said switching controller comprising:
- a first switch for selectively transmitting said signal input from said signal input terminal to one of an audio amplifier and said computer sound generator;
- and
- a second switch for transmitting a signal output from a dial telephone circuit to said computer sound generator via a matching transformer after attenuating a voltage level thereof by a resistor.
15 more elements
A coupling device for providing a telephone function for a computer system, said coupling device comprising:
- mounting means integrally formed on a top surface of said coupling device for attaching to and detaching from a lower portion of a video display monitor;
- loudspeaker means internally incorporated in said coupling device for generating audible sounds;
- control console panel means for selectively switching between said telephone function and an audio function;
- a plurality of input-output terminals for receiving signal inputs from and for sending signal outputs to a computer sound generator and a telephone speech network;
- and sound control circuit means for coupling signal inputs received from said computer sound generator and said telephone speech network to said loudspeaker means;
- wherein said sound control circuit means comprises a telephone control circuit for controlling input and output signals from and to a telephone cord;
- and
- wherein said telephone control circuit comprises a bridge circuit coupled to said telephone cord for receiving said input signals therefrom and for sending said output signals thereto, a piezoelectric controller connected between said telephone cord and a piezoelectric system for driving said piezoelectric system, telephone circuitry connected to said bridge circuit via an on/off-hook switch for controlling a telephone set connected to said telephone circuitry, and a speaker phone circuit connected to said bridge circuit via an on/off switch;
- said sound control circuit means further comprising:
- an amplifier circuit for amplifying a signal output from one of said telephone control circuit and said computer sound generator, and for controlling a volume of an amplified signal generated at an output terminal of said amplifier circuit;
- a speaker controller for selectively generating one of a signal output from said amplifier circuit and a signal output from said telephone control circuit for transmission to said loudspeaker means;
- a switching controller coupled to said telephone control circuit, said computer sound generator and said amplifier circuit for selectively switching said signal inputs from said telephone control circuit and from said computer sound generator for transmission to said amplifier circuit;
- and
- a signal input terminal for applying a signal input from said telephone control circuit, said computer sound generator and an external microphone to said switching controller;
- said switching controller comprising:
- a first switch for selectively transmitting a signal input via said signal input terminal to one of a speaker phone circuit, an audio amplifier and said computer sound generator;
- a second switch for selectively transmitting a signal input via said signal input terminal to a dial telephone circuit;
- a third switch for selectively transmitting a signal output from said dial telephone circuit to said computer sound generator via a matching transformer;
- and
- a fourth switch for selectively applying input-output signals of said dial telephone circuit to one of said computer sound generator and said signal input terminal.
17 more elements
A coupling device for providing a telephone function for a computer system, said coupling device comprising:
- mounting means integrally formed on a top surface of said coupling device for attaching to and detaching from a lower portion of a video display monitor;
- loudspeaker means internally incorporated in said coupling device for generating audible sounds;
- control console panel means for selectively switching between said telephone function and an audio function;
- plurality of input-output terminals for receiving signal inputs from and for sending signal outputs to a computer sound generator and a telephone speech network;
- and sound control circuit means for coupling signal inputs received from said computer sound generator and said telephone speech network to said loudspeaker means;
- wherein said sound control circuit means comprises a telephone control circuit for controlling input and output signals from and to a telephone cord;
- and
- wherein said telephone control circuit comprises a bridge circuit coupled to said telephone cord for receiving said input signals therefrom and for sending said output signals thereto, a piezoelectric controller connected between said telephone cord and a piezoelectric system for driving said piezoelectric system, telephone circuitry connected to said bridge circuit via an on/off-hook switch for controlling a telephone set connected to said telephone circuitry, and a speaker phone circuit connected to said bridge circuit via an on/off switch;
- said sound control circuit means further comprising:
- an amplifier circuit for amplifying a signal output from one of said telephone control circuit and said computer sound generator, and for controlling a volume of an amplified signal generated at an output terminal of said amplifier circuit;
- a speaker controller for selectively generating one of a signal output from said amplifier circuit and a signal output from said telephone control circuit for transmission to said loudspeaker means;
- a switching controller coupled to said telephone control circuit, said computer sound generator and said amplifier circuit for selectively switching said signal inputs from said telephone control circuit and from said computer sound generator for transmission to said amplifier circuit;
- and
- a signal input terminal for applying a signal input from said telephone control circuit, said computer sound generator and an external microphone to said switching controller;
- wherein said switching controller comprises a switch for selectively switching a signal output from an audio amplifier to one of said computer sound generator and an input converter.
12 more elements
A coupling device for providing a telephone function for a computer system, said coupling device comprising:
- mounting means integrally formed on a top surface of said coupling device for attaching to and detaching from a lower portion of a video display monitor;
- loudspeaker means internally incorporated in said coupling device for generating audible sounds;
- control console panel means for selectively switching between said telephone function and an audio function;
- a plurality of input-output terminals for receiving signal inputs from and for sending signal outputs to a computer sound generator and a telephone speech network;
- and sound control circuit means for coupling signal inputs received from said computer sound generator and said telephone speech network to said loudspeaker means;
- wherein said sound control circuit means comprises a telephone control circuit for controlling input and output signals from and to a telephone cord;
- and
- wherein said telephone control circuit comprises a bridge circuit coupled to said telephone cord for receiving said input signals therefrom and for sending said output signals thereto, a piezoelectric controller connected between said telephone cord and a piezoelectric system for driving said piezoelectric system, telephone circuitry connected to said bridge circuit via an on/off-hook switch for controlling a telephone set connected to said telephone circuitry, and a speaker phone circuit connected to said bridge circuit via an on/off switch;
- wherein said sound control circuit means further comprises an amplifier circuit for amplifying a signal output from one of said telephone control circuit and said computer sound generator, and for controlling a volume of an amplified signal generated at an output terminal of said amplifier circuit;
- said sound control circuit means further comprising a switching controller coupled to said telephone control circuit, said computer sound generator and said amplifier circuit for selectively switching said signal inputs from said telephone control circuit and from said computer sound generator for transmission to said amplifier circuit;
- wherein said switching controller comprises an audio amplifier for amplifying said signal input from said signal input terminal to generate a left voice signal and a right voice signal at output terminals of said switching controller.
8 more elements
A coupling device for providing a telephone function for a computer system, said coupling device comprising:
- mounting means integrally formed on a top surface of said coupling device for attaching to and detaching from a lower portion of a video display monitor;
- loudspeaker means internally incorporated in said coupling device for generating audible sounds;
- control console panel means for selectively switching between said telephone function and an audio function;
- a plurality of input-output terminals for receiving signal inputs from and for sending signal outputs to a computer sound generator and a telephone speech network;
- and sound control circuit means for coupling signal inputs received from said computer sound generator and said telephone speech network to said loudspeaker means;
- wherein said sound control circuit means comprises a telephone control circuit for controlling input and output signals from and to a telephone cord;
- and
- wherein said telephone control circuit comprises a bridge circuit coupled to said telephone cord for receiving said input signals therefrom and for sending said output signals thereto, a piezoelectric controller connected between said telephone cord and a piezoelectric system for driving said piezoelectric system, telephone circuitry connected to said bridge circuit via an on/off-hook switch for controlling a telephone set connected to said telephone circuitry, and a speaker phone circuit connected to said bridge circuit via an on/off switch;
- wherein said sound control circuit means further comprises an amplifier circuit for amplifying a signal output from one of said telephone control circuit and said computer sound generator, and for controlling a volume of an amplified signal generated at an output terminal of said amplifier circuit;
- said sound control circuit means further comprising a switching controller coupled to said telephone control circuit, said computer sound generator and said amplifier circuit for selectively switching said signal inputs from said telephone control circuit and from said computer sound generator for transmission to said amplifier circuit;
- wherein said switching controller comprises a switch for selectively transmitting said signal input from said signal input terminal to one of a speaker phone circuit, said computer sound generator and an audio amplifier.
8 more elements
A coupling device for providing a telephone function for a computer system, said coupling device comprising:
- mounting means integrally formed on a top surface of said coupling device for attaching to and detaching from a lower portion of a video display monitor;
- loudspeaker means internally incorporated in said coupling device for generating audible sounds;
- control console panel means for selectively switching between said telephone function and an audio function;
- a plurality of input-output terminals for receiving signal inputs from and for sending signal outputs to a computer sound generator and a telephone speech network;
- and sound control circuit means for coupling signal inputs received from said computer sound generator and said telephone speech network to said loudspeaker means;
- wherein said sound control circuit means comprises a telephone control circuit for controlling input and output signals from and to a telephone cord;
- and
- wherein said telephone control circuit comprises a bridge circuit coupled to said telephone cord for receiving said input signals therefrom and for sending said output signals thereto, a piezoelectric controller connected between said telephone cord and a piezoelectric system for driving said piezoelectric system, telephone circuitry connected to said bridge circuit via an on/off-hook switch for controlling a telephone set connected to said telephone circuitry, and a speaker phone circuit connected to said bridge circuit via an on/off switch;
- wherein said sound control circuit means further comprises an amplifier circuit for amplifying a signal output from one of said telephone control circuit and said computer sound generator, and for controlling a volume of an amplified signal generated at an output terminal of said amplifier circuit;
- said sound control circuit means further comprising a switching controller coupled to said telephone control circuit, said computer sound generator and said amplifier circuit for selectively switching said signal inputs from said telephone control circuit and from said computer sound generator for transmission to said amplifier circuit;
- said switching controller comprising:
- a first switch for selectively transmitting said signal input from said signal input terminal to one of a speaker phone circuit, said computer sound generator and an audio amplifier;
- and
- a second switch for selectively transmitting a voice signal input from said telephone speech network to said audio amplifier.
11 more elements
A coupling device for providing a telephone function for a computer system, said coupling device comprising:
- mounting means integrally formed on a top surface of said coupling device for attaching to and detaching from a lower portion of a video display monitor;
- loudspeaker means internally incorporated in said coupling device for generating audible sounds;
- control console panel means for selectively switching between said telephone function and an audio function;
- a plurality of input-output terminals for receiving signal inputs from and for sending signal outputs to a computer sound generator and a telephone speech network;
- and sound control circuit means for coupling signal inputs received from said computer sound generator and said telephone speech network to said loudspeaker means;
- wherein said sound control circuit means comprises a telephone control circuit for controlling input and output signals from and to a telephone cord;
- and
- wherein said telephone control circuit comprises a bridge circuit coupled to said telephone cord for receiving said input signals therefrom and for sending said output signals thereto, a piezoelectric controller connected between said telephone cord and a piezoelectric system for driving said piezoelectric system, telephone circuitry connected to said bridge circuit via an on/off-hook switch for controlling a telephone set connected to said telephone circuitry, and a speaker phone circuit connected to said bridge circuit via an on/off switch;
- wherein said sound control circuit means further comprises an amplifier circuit for amplifying a signal output from one of said telephone control circuit and said computer sound generator, and for controlling a volume of an amplified signal generated at an output terminal of said amplifier circuit;
- said sound control circuit means further comprising a switching controller coupled to said telephone control circuit, said computer sound generator and said amplifier circuit for selectively switching said signal inputs from said telephone control circuit and from said computer sound generator for transmission to said amplifier circuit;
- said switching controller comprising:
- a first switch for selectively transmitting said signal input from said signal input terminal to one of an audio amplifier and said computer sound generator;
- and
- a second switch for transmitting a signal output from a dial telephone circuit to said computer sound generator via a matching transformer after attenuating a voltage level thereof by a resistor.
11 more elements
A coupling device for providing a telephone function for a computer system, said coupling device comprising:
- mounting means integrally formed on a top surface of said coupling device for attaching to and detaching from a lower portion of a video display monitor;
- loudspeaker means internally incorporated in said coupling device for generating audible sounds;
- control console panel means for selectively switching between said telephone function and an audio function;
- a plurality of input-output terminals for receiving signal inputs from and for sending signal outputs to a computer sound generator and a telephone speech network;
- and
- sound control circuit means for coupling signal inputs received from said computer sound generator and said telephone speech network to said loudspeaker means;
- wherein said sound control circuit means comprises a telephone control circuit for controlling input and output signals from and to a telephone cord;
- and
- wherein said sound control circuit means further comprises an amplifier circuit for amplifying a signal output from one of said telephone control circuit and said computer sound generator, and for controlling a volume of an amplified signal generated at an output terminal of said amplifier circuit;
- said sound control circuit means further comprising a switching controller coupled to said telephone control circuit, said computer sound generator and said amplifier circuit for selectively switching signal inputs from said telephone control circuit and from said computer sound generator for transmission to said amplifier circuit;
- said switching controller comprising:
- a first switch for selectively transmitting a signal input via a signal input terminal to one of a speaker phone circuit, an audio amplifier and said computer sound generator;
- a second switch for selectively transmitting a signal input via said signal input terminal to a dial telephone circuit;
- a third switch for selectively transmitting a signal output from said dial telephone circuit to said computer sound generator via a matching transformer;
- and
- a fourth switch for selectively applying input-output signals of said dial telephone circuit to one of said computer sound generator and said signal input terminal.
13 more elements
A coupling device for providing a telephone function for a computer system, said coupling device comprising:
- mounting means integrally formed on a top surface of said coupling device for attaching to and detaching from a lower portion of a video display monitor;
- loudspeaker means internally incorporated in said coupling device for generating audible sounds;
- control console panel means for selectively switching between said telephone function and an audio function;
- a plurality of input-output terminals for receiving signal inputs from and for sending signal outputs to a computer sound generator and a telephone speech network;
- and sound control circuit means for coupling signal inputs received from said computer sound generator and said telephone speech network to said loudspeaker means;
- wherein said sound control circuit means comprises a telephone control circuit for controlling input and output signals from and to a telephone cord;
- and
- wherein said telephone control circuit comprises a bridge circuit coupled to said telephone cord for receiving said input signals therefrom and for sending said output signals thereto, a piezoelectric controller connected between said telephone cord and a piezoelectric system for driving said piezoelectric system, telephone circuitry connected to said bridge circuit via an on/off-hook switch for controlling a telephone set connected to said telephone circuitry, and a speaker phone circuit connected to said bridge circuit via an on/off switch;
- wherein said sound control circuit means further comprises an amplifier circuit for amplifying a signal output from one of said telephone control circuit and said computer sound generator, and for controlling a volume of an amplified signal generated at an output terminal of said amplifier circuit;
- said sound control circuit means further comprising a switching controller coupled to said telephone control circuit, said computer sound generator and said amplifier circuit for selectively switching said signal inputs from said telephone control circuit and from said computer sound generator for transmission to said amplifier circuit;
- wherein said switching controller comprises a switch for selectively switching a signal output from an audio amplifier to one of said computer sound generator and an input converter.
8 more elements
Dependencies are inferred from the claim text.