Apparatus for communicating data via a telephone
First Claim
1. A data communication apparatus comprising:
- data communication means, adapted to be connected, in parallel with a telephone set, to a public telephone line, for communicating data by transmission or reception, with other station through connection to the telephone line, with said another station;
termination command generating means for generating a termination command, upon being activated, to terminate said data communication by said data communication means under predetermined conditions, in other words remove the brackets;
detection means for detecting said termination command and generating a detection signal;
delay means for delaying said detection signal by a predetermined time to delay telephone line connection termination to provide a period of time to switch to audible communication, subsequent to said data communication prior to telephone line connection termination; and
line connection terminating means responsive to said delayed detection signal for terminating said telephone line connection upon expiration of said predetermined time, without switching to audible communication.
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Accused Products
Abstract
A data communication apparatus includes a data communication portion adapted to be connected to the public telephone line in parallel to a telephone set for data transmission/reception with another station through line connection, a termination command generating device for generating a termination command to terminate data communication by the data communication portion under predetermined conditions, a detecting device for detecting a termination command and generating a detection signal, a delay circuit for delaying the detection signal by a predetermined time, and a line connection terminating device responsive to the delayed detection signal for terminating line connection. There is a predetermined time margin defined by the delay circuit, during the time the termination command is generated until the line connection is terminated. Accordingly, the operation to maintain line connection after the termination of data communication can be performed easily, and talking with the destination station by the telephone is available without re-establishing the line connection, for example.
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Citations
8 Claims
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1. A data communication apparatus comprising:
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data communication means, adapted to be connected, in parallel with a telephone set, to a public telephone line, for communicating data by transmission or reception, with other station through connection to the telephone line, with said another station; termination command generating means for generating a termination command, upon being activated, to terminate said data communication by said data communication means under predetermined conditions, in other words remove the brackets; detection means for detecting said termination command and generating a detection signal; delay means for delaying said detection signal by a predetermined time to delay telephone line connection termination to provide a period of time to switch to audible communication, subsequent to said data communication prior to telephone line connection termination; and line connection terminating means responsive to said delayed detection signal for terminating said telephone line connection upon expiration of said predetermined time, without switching to audible communication. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification