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1. 发明专利

CA2690127A1 COMMUNICATION SYSTEM WITH MULTICARRIER TELEPHONY TRANSPORT 未知
公开(公告)号：CA2690127A1
公开(公告)日：1997-07-31
申请号：CA2690127
申请日：1997-01-24
申请人： ADC TELECOMMUNICATIONS INC
发明人： DAPPER MARK J , GEILE MICHAEL J , HILL TERRANCE J , ROBERTS HAROLD A , ANDERSON BRIAN D , BREDE JEFFREY , WADMAN MARK S , KIRSCHT ROBERT J , HERRMANN JAMES J , FORT MICHAEL J , BUSKA STEVEN J , SOLUM JEFF , ENFIELD DEBRA LEE , BERG DARRELL , SMIGELSKI THOMAS , TUCKER THOMAS C , HALL JOE , LOGAJAN JOHN M , BOUALOUANG SOMVAY , LOU HENG , ELPERS MARK D , DOWNS MATT , FERRIS TAMMY , OPOCZYNSKI ADAM , RUSSELL DAVID S , NELSON CALVIN G , SAMANT NIRANJAN R , CHIAPPETTA JOSEPH F , SARNIKOWSKI SCOTT
IPC分类号： H04J11/00 , G06F17/14 , H04B10/272 , H04H20/69 , H04H20/76 , H04H20/77 , H04H20/78 , H04H20/79 , H04H20/80 , H04H60/86 , H04H60/96 , H04H60/97 , H04J3/14 , H04J14/02 , H04L1/00 , H04L1/24 , H04L5/02 , H04L5/14 , H04L12/10 , H04L12/12 , H04L12/24 , H04L12/26 , H04L12/28 , H04L12/44 , H04L25/03 , H04L27/00 , H04L27/26 , H04L27/34 , H04M7/00 , H04M9/02 , H04N7/173 , H04N7/22 , H04N21/222 , H04N21/2383 , H04N21/2385 , H04N21/24 , H04N21/438 , H04N21/61
摘要： The communication system includes a hybrid fiber/coax distribution network. A head end provides for downstream transmission of telephony and control data in a first frequency bandwidth over the hybrid fiber/coax distribution network and reception of upstream telephony and control data in a second frequency bandwidth over the hybrid fiber/coax distribution network. The head end includes a head end multicarrier modem for modulating downstream telephony information on a plurality of orthogonal carriers in the first frequency bandwidth and demodulating upstream telephony information modulated on a plurality of orthogonal carriers in the second frequency bandwidth. The system includes service units, operatively connected to the hybrid fiber/coax distribution network for upstream transmission of telephony and control data and for receipt of the downstream control data and telephony. Also provided is a method and apparatus for performing a Fast Fourier Transform (FFT).

2. 发明申请

WO0199284A3 AUTOMATIC LEVEL CONTROL FOR INPUT TO ANALOG TO DIGITAL CONVERTER 审中-公开
标题翻译：自动电平控制输入到数字转换器
公开(公告)号：WO0199284A3
公开(公告)日：2002-08-22
申请号：PCT/US0119822
申请日：2001-06-21
申请人： ADC TELECOMMUNICATIONS INC
发明人： CHIAPPETTA JOSEPH F
IPC分类号： H03M1/18
CPC分类号： H03M1/186
摘要： An analog to digital conversion circuit is provided. The analog to digital (A/D) conversion circuit includes an input adapted to receive an analog signal. The A/D conversion circuit further includes a variable attenuator that is coupled to the input and that has a feedback control input. The A/D conversion circuit further includes a converter that is responsive to the variable attenuator and that converts analog input signals to digital output signals. A feedback loop is also provided. The feedback loop is responsive to an overflow indicator of the converter. The feedback loop is adapted to produce a feedback signal based on the overflow indicator and is adapted to provide the feedback signal to the feedback control input of the variable attenuator so as to maintain the peak level of the input to the converter substantially near an acceptable peak input level for the converter.
摘要翻译：提供模数转换电路。模数（A / D）转换电路包括适于接收模拟信号的输入端。 A / D转换电路还包括耦合到输入并具有反馈控制输入的可变衰减器。 A / D转换电路还包括响应于可变衰减器并将模拟输入信号转换为数字输出信号的转换器。还提供了一个反馈回路。反馈回路响应于转换器的溢出指示器。反馈回路适于基于溢出指示器产生反馈信号，并且适于将反馈信号提供给可变衰减器的反馈控制输入，以便将输入到转换器的峰值电平基本上接近可接受的峰值转换器的输入电平。

3. 发明专利

CA2453897C COMMUNICATION SYSTEM WITH MULTICARRIER TELEPHONY TRANSPORT 未知
公开(公告)号：CA2453897C
公开(公告)日：2010-09-21
申请号：CA2453897
申请日：1997-01-24
申请人： ADC TELECOMMUNICATIONS INC
发明人： DAPPER MARK J , GEILE MICHAEL J , HILL TERRANCE J , ROBERTS HAROLD A , ANDERSON BRIAN D , BREDE JEFFREY , WADMAN MARK S , KIRSCHT ROBERT J , HERRMANN JAMES J , FORT MICHAEL J , BUSKA STEVEN P , SOLUM JEFF , ENFIELD DEBRA LEA , BERG DARRELL , SMIGELSKI THOMAS , TUCKER THOMAS C , HALL JOE , LOGAJAN JOHN M , BOUALOUANG SOMVAY , LOU HENG , ELPERS MARK D , DOWNS MATT , FERRIS TAMMY , OPOCZYNSKI ADAM , RUSSELL DAVID S , NELSON CALVIN G , SAMANT NIRANJAN R , CHIAPPETTA JOSEPH F , SARNIKOWSKI SCOTT
IPC分类号： H04L12/12 , H04L27/00 , H04L29/02 , H04L29/06 , H04M11/06 , H04N7/10 , H04N7/167 , H04N7/173
摘要： The communication system includes a hybrid fiber/coax distribution network. A head end provides for downstream transmission of telephony and control data in a first frequency bandwidth over the hybrid fiber/coax distribution network and reception of upstream telephony and control data in a second frequency bandwidth over the hybrid fiber/coax distribution network. The head end includes a head end multicarrier modem for modulating downstream telephony information on a plurality of orthogonal carriers in the first frequency bandwidth and demodulating upstream telephony information modulated on a plurality of orthogonal carriers in the second frequency bandwidth. The system includes service units, operatively connected to the hybrid fiber/coax distribution network for upstream transmission of telephony and control data and for receipt of the downstreaan control data and telephony. Also provided is a method and apparatus for performing a Fast Fourier Transform (FFT).

4. 发明专利

AU6864301A Automatic level control for input to analog to digital converter 未知
公开(公告)号：AU6864301A
公开(公告)日：2002-01-02
申请号：AU6864301
申请日：2001-06-21
申请人： ADC TELECOMMUNICATIONS INC
发明人： CHIAPPETTA JOSEPH F
IPC分类号： H03M1/18
摘要： An analog to digital conversion circuit is provided. The analog to digital (A/D) conversion circuit includes an input adapted to receive an analog signal. The A/D conversion circuit further includes a variable attenuator that is coupled to the input and that has a feedback control input. The A/D conversion circuit further includes a converter that is responsive to the variable attenuator and that converts analog input signals to digital output signals. A feedback loop is also provided. The feedback loop is responsive to an overflow indicator of the converter. The feedback loop is adapted to produce a feedback signal based on the overflow indicator and is adapted to provide the feedback signal to the feedback control input of the variable attenuator so as to maintain the peak level of the input to the converter substantially near an acceptable peak input level for the converter.

5. 发明专利

CA2453896C COMMUNICATION SYSTEM WITH MULTICARRIER TELEPHONY TRANSPORT 未知
公开(公告)号：CA2453896C
公开(公告)日：2005-10-11
申请号：CA2453896
申请日：1997-01-24
申请人： ADC TELECOMMUNICATIONS INC
发明人： SMIGELSKI THOMAS , GEILE MICHAEL J , BREDE JEFFREY , FERRIS TAMMY , ROBERTS HAROLD A , HILL TERRANCE J , ANDERSON BRIAN D , DOWNS MATT , SOLUM JEFF , DAPPER MARK J , BUSKA STEVEN P , WADMAN MARK S , FORT MICHAEL J , ELPERS MARK D , OPOCZYNSKI ADAM , BERG DARRELL , CHIAPPETTA JOSEPH F , SARNIKOWSKI SCOTT , ENFIELD DEBRA LEA , SAMANT NIRANJAN R , NELSON CALVIN G , BOUALOUANG SOMVAY , TUCKER THOMAS C , RUSSELL DAVID S , LOU HENG , HALL JOE , KIRSCHT ROBERT J , LOGAJAN JOHN M , HERRMANN JAMES J
IPC分类号： H04L12/12 , H04L27/00 , H04L29/02 , H04L29/06 , H04M11/06 , H04N7/10 , H04N7/167 , H04N7/173
摘要： The communication system includes a hybrid fiber/coax distribution network. A head end provides for downstream transmission of telephony and control data in a firs t frequency bandwidth over the hybrid fiber/coax distribution network and reception of upstream telephony and control data in a second frequency bandwidth over the hybrid fiber/coax distribution network. The head end includes a head end multicarrier modem for modulating downstream telephony information on a plurality of orthogonal carriers in the first frequency bandwidth and demodulating upstream telephony information modulated on a plurality of orthogonal carriers in the second frequency bandwidth. The system includes service units, operative ly connected to the hybrid fiber/coax distribution network for upstream transmission of telephon y and control data and for receipt of the downstream control data and telephony. Also provided is a method and apparatus far performing a Fast Fourier Transform (FFT).

6. 发明专利

CA2205986A1 COMMUNICATION SYSTEM WITH MULTICARRIER TELEPHONY TRANSPORT 未知
公开(公告)号：CA2205986A1
公开(公告)日：1997-07-24
申请号：CA2205986
申请日：1997-01-24
申请人： ADC TELECOMMUNICATIONS INC
发明人： GEILE MICHAEL J , ENFIELD DEBRA LEA , SOLUM JEFF , FORT MICHAEL J , HERRMANN JAMES J , BREDE JEFFREY , HILL TERRANCE J , HALL JOE , FERRIS TAMMY , WADMAN MARK S , BERG DARRELL , DAPPER MARK J , ROBERTS HAROLD A , ANDERSON BRIAN D , KIRSCHT ROBERT J , SARNIKOWSKI SCOTT , SAMANT NIRANJAN R , DOWNS MATT , ELPERS MARK D , BOUALOUANG SOMVAY , LOU HENG , OPOCZYNSKI ADAM , LOGAJAN JOHN M , RUSSELL DAVID S , BUSKA STEVEN J , SMIGELSKI THOMAS , CHIAPPETTA JOSEPH F , NELSON CALVIN G , TUCKER THOMAS C
IPC分类号： G06F17/14 , H04L1/00 , H04L1/24 , H04L5/02 , H04L5/14 , H04L12/10 , H04L12/12 , H04L12/26 , H04L12/28 , H04L12/44 , H04L27/26 , H04L27/34 , H04M11/06 , H04N7/10
摘要： The communication system includes a hybrid fiber/coax distribution network. A head end provides for downstream transmission of telephony and control data in a first frequency bandwidth over the hybrid fiber/coax distribution network and reception of upstream telephony and control data in a second frequency bandwidth over the hybrid fiber/coax distribution network. The head end includes a head end multicarrier modem for modulating downstream telephony information on a plurality of orthogonal carriers in the first frequency bandwidth and demodulating upstream telephony information modulated on a plurality of orthogonal carriers in the second frequency bandwidth. The system includes service units, operatively connected to the hybrid fiber/coax distribution network for upstream transmission of telephony and control data and for receipt of the downstream control data and telephony. Also provided is a method and apparatus for performing a Fast Fourier Transform (FFT).

7. 发明专利

AU2606001A Dynamic distortion control 未知
公开(公告)号：AU2606001A
公开(公告)日：2001-07-16
申请号：AU2606001
申请日：2000-12-29
申请人： ADC TELECOMMUNICATIONS INC
发明人： CHIAPPETTA JOSEPH F
IPC分类号： H04B10/155

8. 发明专利

CA2757570A1 COMMUNICATION SYSTEM WITH MULTICARRIER TELEPHONY TRANSPORT 未知
公开(公告)号：CA2757570A1
公开(公告)日：1997-07-31
申请号：CA2757570
申请日：1997-01-24
申请人： ADC TELECOMMUNICATIONS INC
发明人： DAPPER MARK J , GEILE MICHAEL J , HILL TERRANCE J , ROBERTS HAROLD A , ANDERSON BRIAN D , BREDE JEFFREY , WADMAN MARK S , KIRSCHT ROBERT J , HERRMANN JAMES J , FORT MICHAEL J , BUSKA STEVEN J , SOLUM JEFF , ENFIELD DEBRA LEE , BERG DARRELL , SMIGELSKI THOMAS , TUCKER THOMAS C , HALL JOE , LOGAJAN JOHN M , BOUALOUANG SOMVAY , LOU HENG , ELPERS MARK D , DOWNS MATT , FERRIS TAMMY , OPOCZYNSKI ADAM , RUSSELL DAVID S , NELSON CALVIN G , CHIAPPETTA JOSEPH F , SARNIKOWSKI SCOTT , SAMANT NIRANJAN R
IPC分类号： H04L27/18 , H04J11/00 , H04L1/00
摘要： The communication system includes a hybrid fiber/coax distribution network. A head end provides for downstream transmission of telephony and control data in a first frequency bandwidth over the hybrid fiber/coax distribution network and reception of upstream telephony and control data in a second frequency bandwidth over the hybrid fiber/coax distribution network. The head end includes a head end multicarrier modem for modulating downstream telephony information on a plurality of orthogonal carriers in the first frequency bandwidth and demodulating upstream telephony information modulated on a plurality of orthogonal carriers in the second frequency bandwidth. The system includes service units, operatively connected to the hybrid fiber/coax distribution network for upstream transmission of telephony and control data and for receipt of the downstream control data and telephony. Also provided is a method and apparatus for performing a Fast Fourier Transform (FFT).

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