US 6,226,369 B1 · Telephone with novel FSK decoding means, simultaneous off-hook caller ID reception means, and set of configurable function key means

Abstract

A telephone device 100, integrated with a telephone or as a telephone add-on device, improves receipt and processing of network information such as Caller ID from conventional telephone networks. A comparator 103 decodes incoming Frequency Shifted Keying (FSK) signals by transforming transform the FSK signal into a square wave signal with corresponding periodic pulse widths. The transformed signal is sent to a microcontroller 105. The microcontroller is preprogrammed to further decode the transformed signal to obtain digital data representative of Caller ID information. Multiple devices connected to the same telephone line 410 may receive off-hook Caller ID simultaneously by selective disablement of an acknowledgment tone transmission through use of a switch 440. Configurable function keys 471 on a user interface 430 controls other network services, such as voice mail, regardless of different command code formats utilized by various network service providers. By grouping and selecting network service command codes, a user can automatically configure a telephone device to interact with the selected network service provider.

Claims12

Dependent claims

A telephone device comprising:

a line interface unit, coupled to a telephone line, for receiving Caller ID information, and for transmitting on the telephone line an acknowledgment tone used during a handshaking phase of transmission of off-hook Caller ID;
a tone generator, coupled to the line interface unit, for generating the acknowledgment tone;
a controller, coupled to the line interface unit and the tone generator, for processing the received Caller ID information, and for directing the generation and sending of the acknowledgment tone by the tone generator and the line interface unit, respectively;
a display, coupled to the controller, for displaying the received Caller ID information;
and
a switch, coupled to the tone generator and the controller, configured to conditionally enable generation of the acknowledgment tone by the tone generator pursuant to a request from the controller, wherein said switch is capable of independently disabling generation of the acknowledgment tone by the tone generator without regard to the request from the controller.

3 more elements

In a telephone device having a line-in circuit unit for receiving an FSK signal;

a tone generator for generating an acknowledgment tone used in a handshaking phase of off-hook Caller ID transmission;
a controller for processing Caller ID information and directing the sending of acknowledgment tone;
a switch for determining whether the generation of acknowledgment tone is enabled or disabled, which overrides the request by the controller;
and a display for displaying the received Caller ID, a method for allowing multiple telephone devices connected to the same telephone line to receive off-hook caller ID simultaneously, the method comprising the steps of:
(a) initializing one and only one of a plurality of devices as a server by setting the switch of that device to a “server” position so that generation of the acknowledgment tone is enabled for only that device;
(b) initializing all other devices as clients by setting the switches of these devices to a “client” position so that generation of the acknowledgment tone is disabled for these other devices, wherein the generation of the acknowledgment tone is disabled for these other devices regardless of any request issued by the controller;
(c) sending, when an off-hook Caller ID arrives, an acknowledgment tone during the handshaking sequence only by the “server” device and not by all other devices;
and
(d) receiving, by all devices, the FSK signal used for off-hook Caller ID, after the handshaking phase and regardless of the setting of the switch on each device.

6 more elements

Dependencies are inferred from the claim text.

Telephone with novel FSK decoding means, simultaneous off-hook caller ID reception means, and set of configurable function key means

Life of this patent

Telephone with novel FSK decoding means, simultaneous off-hook caller ID reception means, and set of configurable function key means

Life of this patent

Abstract

Claims12