US Patent No: 8,156,535
Number of patents in Portfolio can not be more than 2000
Data rate compression device for cable television return path using bandpass puncturing
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Apr 10, 2012
Issued date -
Mar 19, 2002
filing date -
10/102,619
serial no -
In Force
status
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Abstract
An apparatus for and a method of transmitting analog return signals in a digital return path of a cable television system (CATV) is disclosed. In one embodiment, at a node of the CATV system, an analog CATV return signal is converted to a stream of digital samples at approximately 100 MHz. Signals outside of a desired frequency band are removed with a digital filter having predetermined filter coefficients. The resulting stream of digital samples is up-sampled to generate another stream of digital samples at a rate that is four times the center frequency of a predetermined frequency band. The resulting stream is then punctured to generate yet another stream with a data rate that is lower than 100 MHz. Zero samples are removed, and the remaining digital samples are serialized and converted to optical signals for transmission via an optical medium of the CATV return path. A reverse process at a hub or head end of the CATV return system restores the signals of the desired frequency band.
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First Claim
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
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| 5,155,590 System for data channel level control | 165 | 1990 | |
| 5,235,619 Cable television radio frequency subscriber data transmission apparatus and RF return method | 195 | 1990 | |
| 5,142,690 Cable television radio frequency data processor | 138 | 1990 | |
| 5,255,086 Method and apparatus for RF data transfer in a CATV system | 133 | 1990 | |
| 5,319,454 CATV system enabling access to premium (pay per view) program events by bar code data entry | 186 | 1990 | |
| 5,225,902 Automatic frequency selection in a bi-directional cable television system | 154 | 1991 | |
| 5,251,324 Method and apparatus for generating and collecting viewing statistics for remote terminals in a cable television system | 232 | 1991 | |
| 5,247,364 Method and apparatus for tuning data channels in a subscription television system having in-band data transmissions | 242 | 1991 | |
| 5,301,028 Method and apparatus for displaying channel identification information | 104 | 1991 | |
| 5,317,391 Method and apparatus for providing message information to subscribers in a cable television system | 105 | 1991 | |
| 5,357,276 Method of providing video on demand with VCR like functions | 574 | 1992 | |
| 5,430,568 Optical communications system for transmitting information signals having different wavelengths over a same optical fiber | 52 | 1992 | |
| 5,499,241 Broadband communications system | 143 | 1993 | |
| 5,481,542 Interactive information services control system | 443 | 1993 | |
| 5,594,726 Frequency agile broadband communications system | 206 | 1994 | |
| 5,539,822 System and method for subscriber interactivity in a television system | 240 | 1994 | |
| 5,442,472 Fiber optic status monitoring system | 66 | 1994 | |
| 5,497,187 In-band/out-of-band data transmission method and apparatus for a television system | 76 | 1994 | |
| 5,581,555 Reverse path allocation and contention resolution scheme for a broadband communications system | 135 | 1995 | |
| 5,719,867 Plural telephony channel baseband signal demodulator for a broadband communications system | 35 | 1995 | |
| 5,930,231 Block spectrum receiver for a broadband communications system | 91 | 1996 | |
| 5,719,872 Reverse path allocation and contention resolution scheme for a broadband communications system | 119 | 1996 | |
| 5,963,352 Linearization enhanced operation of single-stage and dual-stage electro-optic modulators | 27 | 1997 | |
| 5,854,703 Hybrid fiber coax communications network | 20 | 1997 | |
| 5,826,167 Bi-directional cable television system including a UHF filter | 28 | 1997 | |
| 6,272,150 Cable modem map display for network management of a cable data delivery system | 133 | 1997 | |
| 6,457,178 Pulse width modulator for communication system including fiber optic communications | 22 | 1998 | |
| 6,373,611 Digital optical transmitter | 22 | 1998 | |
| 6,356,374 Digital optical transmitter | 54 | 1998 | |
| 6,356,369 Digital optical transmitter for processing externally generated information in the reverse path | 53 | 1999 | |
| 6,523,177 Cable television system with digital reverse path architecture | 23 | 1999 | |
| 6,437,895 Digital optical transmitter with compression | 14 | 1999 | |
| 6,433,906 Digital optical receiver for cable television systems | 16 | 1999 | |
| 6,417,949 Broadband communication system for efficiently transmitting broadband signals | 14 | 1999 | |
| 6,449,071 Digital signal processing optical transmitter | 30 | 2000 | |
| 6,462,851 Network and method for transmitting reverse analog signals by sub-sampling the digital reverse bandwidth | 19 | 2001 | |
| 6,519,067 Digital optical transmitter | 17 | 2001 | |
|
|
|||
| 5,014,309 Off-premises cable television channel interdiction method and apparatus | 39 | 1988 | |
| 5,208,854 Picture carrier controlled automatic gain control circuit for cable television interdiction or jamming apparatus | 20 | 1989 | |
| 5,245,420 CATV pay per view interdiction system | 71 | 1990 | |
| 5,303,295 Enhanced versatility of a program control by a combination of technologies | 61 | 1992 | |
| 5,243,651 Diagnostic method and apparatus for a cable television interdiction system | 24 | 1992 | |
| 5,323,462 CATV subscriber disconnect switch | 19 | 1992 | |
| 5,505,901 CATV pay per view interdiction system method and apparatus | 42 | 1994 | |
|
|
|||
| 5,070,402 Encoding image information transmission apparatus | 24 | 1991 | |
| 6,625,166 Communication system for communicating a plurality of time-division multiplexed data, and control method therefor | 16 | 1997 | |
| 5,854,830 Concurrent voice and data communication | 18 | 1997 | |
|
|
|||
| 7,257,328 System and method for transmitting data on return path of a cable television system | 11 | 2000 | |
| 7,222,358 Cable television return link system with high data-rate side-band communication channels | 38 | 2002 | |
| 7,519,078 Automated ethernet configuration of CATV network | 5 | 2004 | |
|
|
|||
| 5,684,799 Full service network having distributed architecture | 155 | 1995 | |
| 6,041,056 Full service network having distributed architecture | 176 | 1997 | |
|
|
|||
| 6,041,066 Method of synchronization status message processing in transmission apparatus | 28 | 1998 | |
| 6,898,256 Synchronization method and apparatus | 1 | 2002 | |
|
|
|||
| 6,279,158 Dynamic bandwidth allocation | 80 | 1999 | |
| 6,535,715 Hybrid/fiber coax video and telephony communication system with poly-phase filtering | 46 | 1999 | |
|
|
|||
| 4,631,746 Compression and expansion of digitized voice signals | 38 | 1983 | |
| 7,000,018 Voice data streaming control in a network | 8 | 1999 | |
|
|
|||
| 4,918,446 Decoder with reduced synchronization capture time | 21 | 1988 | |
| 5,657,333 Method and apparatus for error-control coding in a digital data communication system | 6 | 1994 | |
|
|
|||
| 6,831,901 System and method for retransmission of data | 45 | 2002 | |
|
|
|||
| 6,798,790 Method of generating a clock signal for the upstream channel of a bidirectional point-to-multipoint network | 17 | 2000 | |
|
|
|||
| 7,131,024 Multiple transmit data rates in programmable logic device serial interface | 9 | 2003 | |
|
|
|||
| 5,680,394 Time division duplexed high speed data transmission system and method | 46 | 1995 | |
|
|
|||
| 7,035,355 Apparatus and method for decode arbitration in a multi-stream multimedia system | 10 | 2001 | |
|
|
|||
| 6,178,446 Method and system for supporting interactive commercials displayed on a display device using a telephone network | 73 | 1997 | |
|
|
|||
| 4,513,426 Adaptive differential pulse code modulation | 21 | 1982 | |
|
|
|||
| 5,313,467 Integrated communication link having a dynamically allocatable bandwidth and protocol for transmission of allocation information over the link | 99 | 1992 | |
|
|
|||
| 5,926,478 Data transmission over a point-to-multipoint optical network | 52 | 1997 | |
|
|
|||
| 5,113,189 Frequency translating coherent analog to digital conversion system for modulated signals | 16 | 1991 | |
|
|
|||
| 6,754,221 System and method for selecting a compression algorithm according to an available bandwidth | 47 | 2001 | |
|
|
|||
| 4,809,271 Voice and data multiplexer system | 91 | 1987 | |
|
|
|||
| 2003/0016,701 Distributed block frequency converter | 13 | 2001 | |
|
|
|||
| 5,963,557 High capacity reservation multiple access network with multiple shared unidirectional paths | 200 | 1997 | |
|
|
|||
| 6,622,281 Rate matching method in mobile communication system | 31 | 2000 | |
|
|
|||
| 5,907,363 Method for controlling a compressed data buffer | 11 | 1996 | |
|
|
|||
| 2002/0073,434 System and method for supporting broadband communications services | 25 | 2000 | |
|
|
|||
| 5,864,560 Method and apparatus for mode switching in a voice over data computer-based personal communications system | 46 | 1997 | |
|
|
|||
| 2002/0085,589 System and method for assigning network data packet header | 6 | 2001 | |
|
|
|||
| 6,505,271 Increasing priority encoder speed using the most significant bit of a priority address | 12 | 1999 | |
|
|
|||
| 2006/0013,194 Support for fax and modem in sip/sip-t networks and the interworking of these networks with isup+/bicc | 11 | 2003 | |
|
|
|||
| 5,844,706 Fibre-optic communications-transmission method and intermediate repeater for use in the method | 16 | 1996 | |
|
|
|||
| 6,161,011 Hybrid fiber coax communications systems | 34 | 1997 | |
|
|
|||
| 6,715,124 Trellis interleaver and feedback precoder | 18 | 2001 | |
|
|
|||
| 6,493,005 On screen display | 20 | 1999 | |
|
|
|||
| 5,036,315 Simultaneous display of interleaved windowed video information from multiple asynchronous computers on a single video monitor | 64 | 1988 | |
|
|
|||
| 4,862,392 Geometry processor for graphics display system | 151 | 1986 | |
|
|
|||
| 6,751,269 Bit-interleaved coded modulation for CATV upstream channels | 11 | 2000 | |
|
|
|||
| 5,794,117 Cable television network with upstream channel specialized for sending upstream information signals | 14 | 1996 | |
|
|
|||
| 6,091,932 Bidirectional point to multipoint network using multicarrier modulation | 156 | 1998 | |
|
|
|||
| 6,389,075 MPEG encoding technique for encoding web pages | 15 | 2001 | |
|
|
|||
| 6,175,861 Apparatus and method for providing computer display data from a computer system to a remote display device | 52 | 1998 | |
| 2003/0035,445 Integrated ethernet and PDH/SDH/SONET communication system | 14 | 2001 | |
Patent Citation Ranking
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Oct 10, 2015 |
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Oct 10, 2019 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Oct 10, 2023 |
| Fee | Large entity fee | small entity fee | micro entity fee |
|---|---|---|---|
| Surcharge - 3.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge - 7.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
| Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |