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Patent Agency Ranking
公开(公告)号：DE69026096T2
公开(公告)日：1996-10-02
申请号：DE69026096
申请日：1990-12-05
Applicant: IBM
Inventor： BRUNO ANDRE , FIESCHI JACQUES , MARTIN JEAN , VAUTIER REMI
Abstract: Coupling device for the connection of a Data Circuit Terminating Equipment DCE to a given Public Switched Telephone Network PSTN and to a local telephone set. The coupler includes means for providing said local telephone set with DC current whereby the microphone and the headphone of the telephone can be used respectively for transmitting and receiving vocal messages from the a DTE which is connected to said DCE. The invention also provides a DCE for the connection of a DTE toga a PSTN and to a local telephone set including a coupler circuit having the electronic components matching the electric requirements of a given PSTN. The coupler further includes means for providing the telephone set with DC current whereby vocal messages can be transmitted and received from the DTE to the telephone set. The invention further provides a DCE for the connection of a DTE to a PSTN and to a local telephone set which includes means for removably attaching a coupler circuit having the electronic components matching the electrical requirements of a given PSTN and further including means for providing the telephone set with DC current whereby vocal messages can be transmitted and received from the telephone set to the DTE.
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公开(公告)号：DE69026095T2
公开(公告)日：1996-10-02
申请号：DE69026095
申请日：1990-12-05
Applicant: IBM
Inventor： BRUNO ANDRE , FIESCHI JACQUES , MARTIN JEAN , VAUTIER REMI
Abstract: Coupling device (150) according to the invention for connecting a DCE to a PSTN including the electronic components matching the electric requirements of a specific PSTN. The coupling device comprises plugging means for removably connecting the latter to the DCE, means (227) for storing an identification code corresponding to a specific type of PSTN to which the coupler is intended to be connected to. The coupling device (150) further comprises means (226) responsive to a control signal received from the DCE for transmitting the identification code to the DCE. The DCE connected to the coupling device includes processing means and a storage for storing tables, each table comprising data characterizing a specific PSTN which the DCE is intended to operate with. The DCE reads the identification code during an identification phase by transmitting the control signal and selects in response to said reading the appropriate table corresponding to the coupling device. Therefore, by simply connecting an appropriate coupling device, a same DCE can be easily adapted to operate with a specific PSTN. Moreover, since the voluminous components are located into the coupling device, the DCE can be easily integrated, for example in one workstation.
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公开(公告)号：DE69026095D1
公开(公告)日：1996-04-25
申请号：DE69026095
申请日：1990-12-05
Applicant: IBM
Inventor： BRUNO ANDRE , FIESCHI JACQUES , MARTIN JEAN , VAUTIER REMI
Abstract: Coupling device (150) according to the invention for connecting a DCE to a PSTN including the electronic components matching the electric requirements of a specific PSTN. The coupling device comprises plugging means for removably connecting the latter to the DCE, means (227) for storing an identification code corresponding to a specific type of PSTN to which the coupler is intended to be connected to. The coupling device (150) further comprises means (226) responsive to a control signal received from the DCE for transmitting the identification code to the DCE. The DCE connected to the coupling device includes processing means and a storage for storing tables, each table comprising data characterizing a specific PSTN which the DCE is intended to operate with. The DCE reads the identification code during an identification phase by transmitting the control signal and selects in response to said reading the appropriate table corresponding to the coupling device. Therefore, by simply connecting an appropriate coupling device, a same DCE can be easily adapted to operate with a specific PSTN. Moreover, since the voluminous components are located into the coupling device, the DCE can be easily integrated, for example in one workstation.
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公开(公告)号：DE3854231D1
公开(公告)日：1995-08-31
申请号：DE3854231
申请日：1988-04-29
Applicant: IBM
Abstract: A rate adaptation system for adapting the rate of a communication stream between a first communication device (TE) and a second communication device (NT). The first communication device transmits and receives data at a first given rate and the second communication device transmits and receives data at a second rate higher than said first rate (generally 8, 16, 32 or 64 kbits/s). The rate adaptation system includes a transmit part (620) which allows the transmission from the first communication device to the second communication device by means of a bit repetition and framing function. The rate adaptation system also includes a receive part (630) which allows the transmission from the second communication device to the first communication device. The invention further includes a first storage (670) which can be addressed by an address bus (640), a data bus (650) and a control bus (660) either by the transmit part (620), or the receive part (630) or by a processor (680) external to the transmit and receive part. A second storage (690) can be addressed by the processor (680). A part of its content, representative of a particular frame structure corresponding to a given bit repetition and frame function, is loaded into the first storage (670) during an initialization period. The transmit part includes means (760) operating after the initialization period, which generates a sequence of values on the address bus (650). In this way, a sequence of data words is extracted from the first storage (670) and is used to control the transmit part. Similarly, the receive part (630) includes means (860) for generating an second sequence of values on data bus (640) at different instants than for the transmit part (620), thus extracting a second sequence of data words from the first storage (670) and used to control the receive part.
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公开(公告)号：CA2055014C
公开(公告)日：1995-06-20
申请号：CA2055014
申请日：1991-11-06
Applicant: IBM
Inventor： BRUNO ANDRE , FIESCHI JACQUES , MARTIN JEAN , VAUTIER REMI
Abstract: Coupling device for the connection of a Data Circuit Terminating Equipment DCE to a given Public Switched Telephone Network PSTN and to a local telephone set. The coupler includes means for providing said local telephone set with DC current whereby the microphone and the headphone of the telephone can be used respectively for transmitting and receiving vocal messages from the a DTE which is connected to said DCE. The invention also provides a DCE for the connection of a DTE to a a PSTN and to a local telephone set including a coupler circuit having the electronic components matching the electric requirements of a given PSTN. The coupler further includes means for providing the telephone set with DC current whereby vocal messages can be transmitted and received from the DTE to the telephone set. The invention further provides a DCE for the connection of a DTE to a PSTN and to a local telephone set which includes means for removably attaching a coupler circuit having the electronic components matching the electrical requirements of a given PSTN and further including means for providing the telephone set with DC current whereby vocal messages can be transmitted and received from the telephone set to the DTE.
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