Patent EP0141911A2 successfully refreshed from Google Patents.
EP0141911A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Telecommunications apparatus
Assignee: CYGNET TECHNOLOGIES Inc
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Filing: 1984-07-27
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Granted: —
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Expires: 2004-07-27
Abstract
Abstract The present invention relates to a communication apparatus for transmitting and receiving analog voice and digital data signals to and from a telephone line or telephone lines to one or more users, in the same session. The apparatus has a telephony means for transmitting or receiving the voice signals and a modem means for transmitting or receiving the data signals. A switch is interposed between the telephone line and the modem and the telephony means. The switch can be placed in a first position or in a second position. In the first position, the telephony means is connected to the telephone lines and transmits and receives voice signals. In addition, the modem means is connected to receive data signals from the medium. In the second posi- ton, the telephony means is disconnected from the medium. The modem means is connected to transmit and to receive digital data signals to and from the medium. A control circuit comprising a microprocessor, controls the switch such that it can be switched between the first position and the second position. The microprocessor changes the switch from the first position to the second position when the apparatus transmit digital data signals or receives the carrier signal indicating that digital data signals will be received by the apparatus. Upon termination of the transmission of the digital data signals from the apparatus or upon termination of the reception of digital data signals, the microprocessor automatically switches the switch back to the first position whereby voice communication can be continued.
Inventors
- 👤 Federico Faggin
- 👤 Lauren G. Yazolino
- 👤 Jerry K. Klein
- 👤 Robert G. Korody
- 👤 Eric P.L. Ha
- 👤 Stephen Kerman
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-30 23:24
CPC Classifications
H; H04; H04L; H04L1/00; H04L1/24; H04M; H04M11/00; H04M11/06
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
281 words
A communication apparatus for transmitting and receiving analog voice and digital data signals to and from a communication medium, in the same session, said apparatus comprising: telephony means for transmitting and receiving said voice signals to and from said medium; modem means for transmitting and receiving said data signals to and from said medium; switch means interposed between said communication medium, said telephony means, and said modem means; said switch means being adapted to connect said medium and said telephony means and said modem means in a first position and in a second position, wherein in said first position said telephony means being connected to transmit and to receive voice signals to and from said medium and said modem means being connected to receive data signals from said medium; and wherein in said second position said telephony means being disconnected from said medium and said modem means being connected to transmit and to receive data signals to and from said medium; and control means for controlling said switch means between said first position and said second position; said control means for automatically switching said switch means from said first position to said second position when said apparatus transmits data signals to said medium or when said modem means detects data signals will be received from said medium; and said control means for automatically switching said switch means from said second position to said first position when said apparatus terminates the transmission of data signal to said medium or when said modem means ceases to receive data signals from said medium; whereby said data signal and voice signal being transmitted and received to and from said communication medium in the same session.
Claim 2
Dependent Claim
281 words
A communication apparatus for transmitting and receiving analog voice and digital data signals to and from a communication medium, in the same session, said apparatus comprising: telephony means for transmitting and receiving said voice signals to and from said medium; modem means for transmitting and receiving said data signals to and from said medium; switch means interposed between said communication medium, said telephony means, and said modem means; said switch means being adapted to connect said medium and said telephony means and said modem means in a first position and in a second position, wherein in said first position said telephony means being connected to transmit and to receive voice signals to and from said medium and said modem means being connected to receive data signals from said medium; and wherein in said second position said telephony means being disconnected from said medium and said modem means being connected to transmit and to receive data signals to and from said medium; and control means for controlling said switch means between said first position and said second position; said control means for automatically switching said switch means from said first position to said second position when said apparatus transmits data signals to said medium or when said modem means detects data signals will be received from said medium; and said control means for automatically switching said switch means from said second position to said first position when said apparatus terminates the transmission of data signal to said medium or when said modem means ceases to receive data signals from said medium; whereby said data signal and voice signal being transmitted and received to and from said communication medium in the same session.
Claim 3
Dependent Claim
17 words
The apparatus of Claim 1 wherein said signals are carried by said medium to a single end-user.
Claim 4
Dependent Claim
18 words
The apparatus of Claim 1 wherein said signals are carried by said medium to a plurality of end-users.
Claim 5
Dependent Claim
48 words
The apparatus of Claim 3 further comprising hold means for holding the communication session between said apparatus and a first end-user; means for originating a communication session between said apparatus and a second end-user; and means for connecting said session with said first end-user and said second end-user.
Claim 6
Dependent Claim
117 words
An interface apparatus between a digital computer and an analog communication medium, said interface apparatus comprising: telephony means for transmitting and receiving voice signals to and from said medium; modem means for communicating with said computer and said medium for transmitting and receiving data signals to and from said medium for said computer; switch means for switching the connection of said telephony means to said medium and said modem means to said medium; and interrupt means for interrupting the operation of said computer for causing said computer to be in communication with said modem, and for switching said switch means to connect said modem means with said medium; whereby said computer being in communication with said apparatus.
Claim 7
Dependent Claim
117 words
An interface apparatus between a digital computer and an analog communication medium, said interface apparatus comprising: telephony means for transmitting and receiving voice signals to and from said medium; modem means for communicating with said computer and said medium for transmitting and receiving data signals to and from said medium for said computer; switch means for switching the connection of said telephony means to said medium and said modem means to said medium; and interrupt means for interrupting the operation of said computer for causing said computer to be in communication with said modem, and for switching said switch means to connect said modem means with said medium; whereby said computer being in communication with said apparatus.
Claim 8
Dependent Claim
30 words
The apparatus of Claim 5 wherein said computer has a display screen, said interrupt means for storing data displayed on said screen when the operation of said computer is interrupted.
Claim 9
Independent Claim
105 words
An apparatus for communicating digital data signals with another like apparatus, each apparatus comprising: modem means for transmitting and receiving said data signals to and from the other like apparatus, said modem means having an auto- .matically changeable rate of transmission and reception; means for receiving said data signals from the other like apparatus and for detecting the amount of error in said data signals; and means responsive to the amount of error detected, to change the rate in said modem means and to transmit a signal to the other like apparatus to change the rate in said other modem means to the same rate.
Claim 10
Independent Claim
105 words
An apparatus for communicating digital data signals with another like apparatus, each apparatus comprising: modem means for transmitting and receiving said data signals to and from the other like apparatus, said modem means having an auto- .matically changeable rate of transmission and reception; means for receiving said data signals from the other like apparatus and for detecting the amount of error in said data signals; and means responsive to the amount of error detected, to change the rate in said modem means and to transmit a signal to the other like apparatus to change the rate in said other modem means to the same rate.
Claim 11
Dependent Claim
15 words
The apparatus of Claim 7 wherein said rate is decreased when said error is detected.
Claim 12
Dependent Claim
23 words
The apparatus of Claim 8 wherein said modem means is changeable from 600 baud to 450 baud to 300 baud, to 110 baud.
Claim 13
Dependent Claim
17 words
The apparatus of Claim 8 wherein said modem means is changeable from 1200 baud to 300 baud.
References Cited (Backward Citations)
No citation records indexed.
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