US 5,315,640 AGranted

Data transfer device

AssigneesYamaha Corporation, Nippon Telegraph and Telephone Corporation

InventorsAkira Takayama, Mitsuo Yoshida, Shinichi Matsui

Life of this patent

Estimating the term…

Loading patent…

Abstract

A data transfer device is disclosed whereby both spoken conversation and transfer of data can easily and conveniently be carried out with a minimum of manual steps and repetitions operations. The disclosed device includes first telephone number memory for storing a telephone number of a remote communication node when the data transfer device originates a communication session; second telephone number memory for storing a telephone number of the remote communication node when the remote communication node originates the communication session; start command generating circuit for generating a start command; and data transfer circuit for transferring data. The above mentioned data transfer circuit is such that when the start command generating circuit generates a start command and the data transfer device has originated the communication session, the data transfer circuit initiates a connection over a channel for transmission of digital data between the data transfer device and the remote node corresponding to the telephone number stored in the first telephone number memory, and when the start command generating circuit generates a start command and the remote node has originated the communication session, the data transfer circuit Initiates a connection over a channel for transmission of digital data between the data transfer device and the remote node corresponding to the telephone number stored in the second telephone number memory.

Claims2

Dependent claims

A data transfer device for transmitting and receiving speech and data over digital communication lines, said data transfer device comprising:

a) first telephone number memory means for storing a telephone number of a remote communication node with which said data transfer device originates a communication session;
b) second telephone number memory means for storing a telephone number of a remote communication node which originates a communication session with said data transfer device;
c) start command generating means for generating a start command;
and
d) data transfer means for transferring data, such that:
i) when said start command generating means generates a start command and a time interval of no greater than a predetermined time interval has a elapsed since completion of a communication session which was originated by said data transfer device, said data transfer means initiates a connection over a channel for transmission of digital data between said data transfer device and the remote communication node corresponding to the telephone number stored in said first telephone number memory means, and
ii) when said start command generating means generates a start command and a time interval of no greater than a predetermined time interval has elapsed since completion of a communication session which was originated by a remote communication node, said data transfer means initiates a connection over a channel for transmission of digital data between said data transfer device and the remote communication node corresponding to the telephone number stored in said second telephone number memory means.

4 more elements

Dependencies are inferred from the claim text.