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公开(公告)号：DE69125816T2
公开(公告)日：1997-10-23
申请号：DE69125816
申请日：1991-02-21
Applicant: IBM
Inventor： BLANC ALAIN , GOHL-ROUX SYLVIE , UNGERBOECK GOTTFRIED
Abstract: DCE and method for performing the processing of data into a DCE, and DCE which includes a digital signal processor DSP (202) for processing the data transmitted between a Data terminating equipment DTE (209) and a telecommunication line, transmit (213) and receive (214) circuits being connected to the DTE interface. The DCE further includes A/D (215) and a D/A converters (216) for respectively converting the data from an analog form to Pulse Coded Modulation PCM words and from PCM words to an analog form and also a control processor (200) for controlling the communication protocols and a storage (204) which is connected to both the DSP processor (202) and the control processor (200). The method is characterized in that it involves the steps of storing (403) by means of said DSP processor (202) the bits provided by said transmit circuit (213) into a first queue (300) which is located into said storage (204) and storing (507) into a second queue (304) which is also located into the same storage (204) the characters being computed by said DSP processor (202) and deriving from the bits stored into said first queue (300) accordingly to a first given transmission protocol being either a start-stop, a HDLC or a BSC transmission protocol. The method further involves the step of storing (513) into a third queue (307) which is located into the same storage as above the characters being provided by said control processor (200) in order to be transmitted to a remote DCE via the telecommunication line. A further step is involved which is the storing (513) into a fourth queue (309) which is still located into the storage (204) the bits being computed by said DSP processor (202) and deriving from the characters stored into said third queue (307) accordingly to a second given transmission protocol. the transmission of data through the telecommunication line is achieved by storing into a fifth queue (302) the PCM words which are computed by said DSP processor (202) in accordance with a given modulation algorithm, the PCM words being derived either from the contents of said first (300) queue in synchronous mode or from the contents of the third (307) queue when the transmit part of the DCE is intended to operate in an asynchronous mode or still when the control processor (200) wishes to transmit data through the telecommunication line. The selection of an appropriate transmission protocol, chosen the existing protocols such as start-stop, HDLC, BSC, as well as the selection of the appropriate modulation algorithm provides a method for processing data to be transmitted from a DTE to a telecommunication line which allows a large number of configuration without requiring the great number of electronic components which were usually necessary. The invention also provides the receive part of the DCE.
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2.发明专利
公开(公告)号：CA2060976A1
公开(公告)日：1992-08-22
申请号：CA2060976
申请日：1992-02-11
Applicant: IBM
Inventor： BLANC ALAIN , GOHL-ROUX SYLVIE , UNGERBOECK GOTTFRIED
Abstract: DCE and method for performing the processing of data into a DCE, and DCE which includes a digital signal processor DSP (202) for processing the data transmitted between a Data terminating equipment DTE (209) and a telecommunication line, transmit (213) and receive (214) circuits being connected to the DTE interface. The DCE further includes A/D (215) and a D/A converters (216) for respectively converting the data from an analog form to Pulse Coded Modulation PCM words and from PCM words to an analog form and also a control processor (200) for controlling the communication protocols and a storage (204) which is connected to both the DSP processor (202) and the control processor (200). The method is characterized in that it involves the steps of storing (403) by means of said DSP processor (202) the bits provided by said transmit circuit (213) into a first queue (300) which is located into said storage (204) and storing (507) into a second queue (304) which is also located into the same storage (204) the characters being computed by said DSP processor (202) and deriving from the bits stored into said first queue (300) accordingly to a first given transmission protocol being either a start-stop, a HDLC or a BSC transmission protocol. The method further involves the step of storing (513) into a third queue (307) which is located into the same storage as above the characters being provided by said control processor (200) in order to be transmitted to a remote DCE via the telecommunication line. A further step is involved which is the storing (513) into a fourth queue (309) which is still located into the storage (204) the bits being computed by said DSP processor (202) and deriving from the characters stored into said third queue (307) accordingly to a second given transmission protocol. the transmission of data through the telecommunication line is achieved by storing into a fifth queue (302) the PCM words which are computed by said DSP processor (202) in accordance with a given modulation algorithm, the PCM words being derived either from the contents of said first (300) queue in synchronous mode or from the contents of the third (307) queue when the transmit part of the DCE is intended to operate in an asynchronous mode or still when the control processor (200) wishes to transmit data through the telecommunication line. The selection of an appropriate transmission protocol, chosen the existing protocols such as start-stop, HDLC, BSC, as well as the selection of the appropriate modulation algorithm provides a method for processing data to be transmitted from a DTE to a telecommunication line which allows a large number of configuration without requiring the great number of electronic components which were usually necessary. The invention also provides the receive part of the DCE.
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公开(公告)号：DE69125816D1
公开(公告)日：1997-05-28
申请号：DE69125816
申请日：1991-02-21
Applicant: IBM
Inventor： BLANC ALAIN , GOHL-ROUX SYLVIE , UNGERBOECK GOTTFRIED
Abstract: DCE and method for performing the processing of data into a DCE, and DCE which includes a digital signal processor DSP (202) for processing the data transmitted between a Data terminating equipment DTE (209) and a telecommunication line, transmit (213) and receive (214) circuits being connected to the DTE interface. The DCE further includes A/D (215) and a D/A converters (216) for respectively converting the data from an analog form to Pulse Coded Modulation PCM words and from PCM words to an analog form and also a control processor (200) for controlling the communication protocols and a storage (204) which is connected to both the DSP processor (202) and the control processor (200). The method is characterized in that it involves the steps of storing (403) by means of said DSP processor (202) the bits provided by said transmit circuit (213) into a first queue (300) which is located into said storage (204) and storing (507) into a second queue (304) which is also located into the same storage (204) the characters being computed by said DSP processor (202) and deriving from the bits stored into said first queue (300) accordingly to a first given transmission protocol being either a start-stop, a HDLC or a BSC transmission protocol. The method further involves the step of storing (513) into a third queue (307) which is located into the same storage as above the characters being provided by said control processor (200) in order to be transmitted to a remote DCE via the telecommunication line. A further step is involved which is the storing (513) into a fourth queue (309) which is still located into the storage (204) the bits being computed by said DSP processor (202) and deriving from the characters stored into said third queue (307) accordingly to a second given transmission protocol. the transmission of data through the telecommunication line is achieved by storing into a fifth queue (302) the PCM words which are computed by said DSP processor (202) in accordance with a given modulation algorithm, the PCM words being derived either from the contents of said first (300) queue in synchronous mode or from the contents of the third (307) queue when the transmit part of the DCE is intended to operate in an asynchronous mode or still when the control processor (200) wishes to transmit data through the telecommunication line. The selection of an appropriate transmission protocol, chosen the existing protocols such as start-stop, HDLC, BSC, as well as the selection of the appropriate modulation algorithm provides a method for processing data to be transmitted from a DTE to a telecommunication line which allows a large number of configuration without requiring the great number of electronic components which were usually necessary. The invention also provides the receive part of the DCE.
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4.发明专利
公开(公告)号：CA2060976C
公开(公告)日：1996-07-23
申请号：CA2060976
申请日：1992-02-11
Applicant: IBM
Inventor： BLANC ALAIN , GOHL-ROUX SYLVIE , UNGERBOECK GOTTFRIED
Abstract: The invention relates to data circuit terminating equipment and method for processing data transmitted between data terminating equipment and a telecommunication line. The equipment includes A/D and D/A converters for respectively, converting the data from an analog form to Pulse Coded Modulation (PCM) words and from PCM words to analog form and a control processor for controlling communication protocols. The method is characterized in that it involves the steps of storing signals provided by a transmit circuit into a first queue and storing into a second queue computer characters derived from the signals stored into said first queue according to a first given transmission protocol either a start-stop, a high level data link control (HDLC) or a binary synchronous communication (BSC) transmission protocol. The method further involves the step of storing into a third queue the characters being provided by a control processor to be transmitted to a remote data circuit terminating equipment via the telecommunication line. The selection of an appropriate transmission protocol, as well as the selection of an appropriate modulation algorithm provides a method for processing data to be transmitted from data terminating equipment to a telecommunication line which allows a large number of configurations without requiring the great number of electronic components which were usually necessary.
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