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公开(公告)号：US11239916B2
公开(公告)日：2022-02-01
申请号：US16989572
申请日：2020-08-10
Applicant: CABLE TELEVISION LABORATORIES, INC.
Inventor： Jing Wang , Luis Alberto Campos , Zhensheng Jia , Curtis Dean Knittle
IPC: H04B10/2507 , H03M3/00
Abstract: A baseband processing unit includes a baseband processor configured to receive a plurality of component carriers of a radio access technology wireless service, and a delta-sigma digitization interface configured to digitize at least one carrier signal of the plurality of component carriers into a digitized bit stream, for transport over a transport medium, by (i) oversampling the at least one carrier signal, (ii) quantizing the oversampled carrier signal into the digitized bit stream using two or fewer quantization bits.
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公开(公告)号：US20210367676A1
公开(公告)日：2021-11-25
申请号：US17397594
申请日：2021-08-09
Applicant: CABLE TELEVISION LABORATORIES, INC.
Inventor： Chuang Zhou , Zhensheng Jia , Luis Alberto Campos , Curtis Dean Knittle , Jing Wang
Abstract: An injection locked transmitter for an optical communication network includes a master seed laser source input substantially confined to a single longitudinal mode, an input data stream, and a laser injected modulator including at least one slave laser having a resonator frequency that is injection locked to a frequency of the single longitudinal mode of the master seed laser source. The laser injected modulator is configured to receive the master seed laser source input and the input data stream, and output a laser modulated data stream.
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公开(公告)号：US11115126B2
公开(公告)日：2021-09-07
申请号：US16408285
申请日：2019-05-09
Applicant: CABLE TELEVISION LABORATORIES, INC
Inventor： Zhensheng Jia , Luis Alberto Campos , Curtis Dean Knittie , Jing Wang
IPC: H04J14/00 , H04B10/50 , H04B10/63 , H04B10/532 , H04B10/64 , H04J14/06 , H04J14/04 , H04Q11/00 , H04J14/02
Abstract: An injection locked transmitter for an optical communication network includes a master seed laser source input substantially confined to a single longitudinal mode, an input data stream, and a laser injected modulator including at least one slave laser having a resonator frequency that is injection locked to a frequency of the single longitudinal mode of the master seed laser source. The laser injected modulator is configured to receive the master seed laser source input and the input data stream, and output a laser modulated data stream.
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公开(公告)号：US20210194591A1
公开(公告)日：2021-06-24
申请号：US17195215
申请日：2021-03-08
Applicant: CABLE TELEVISION LABORATORIES, INC.
Inventor： Junwen Zhang , Zhensheng Jia , Luis Alberto Campos , Haipeng Zhang , Mu Xu , Jing Wang , Curtis Dean Knittle , Chuang Zhou
Abstract: An injection locked transmitter for an optical communication network includes a master seed laser source input substantially confined to a single longitudinal mode, an input data stream, and a laser injected modulator including at least one slave laser having a resonator frequency that is injection locked to a frequency of the single longitudinal mode of the master seed laser source. The laser injected modulator is configured to receive the master seed laser source input and the input data stream, and output a laser modulated data stream.
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公开(公告)号：US11025461B2
公开(公告)日：2021-06-01
申请号：US16835168
申请日：2020-03-30
Applicant: CABLE TELEVISION LABORATORIES, INC
Inventor： Jing Wang , Luis Alberto Campos , Zhensheng Jia
IPC: H04L25/49 , H04B10/2575 , H04W88/08 , H03M3/00 , H04B1/04
Abstract: A baseband processing unit includes a baseband processor configured to receive a plurality of component carriers of a radio access technology wireless service, and a delta-sigma digitization interface configured to digitize at least one carrier signal of the plurality of component carriers into a digitized bit stream, for transport over a transport medium, by (i) oversampling the at least one carrier signal, (ii) quantizing the oversampled carrier signal into the digitized bit stream using two or fewer quantization bits.
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Patent Agency Ranking
公开(公告)号：US11025344B2
公开(公告)日：2021-06-01
申请号：US16093594
申请日：2017-03-21
Applicant: CABLE TELEVISION LABORATORIES, INC
Inventor： Zhensheng Jia , Luis Alberto Campos , Curtis Dean Knittle
Abstract: An injection locked transmitter for an optical communication network includes a master seed laser source input substantially confined to a single longitudinal mode, an input data stream, and a laser injected modulator including at least one slave laser having a resonator frequency that is injection locked to a frequency of the single longitudinal mode of the master seed laser source. The laser injected modulator is configured to receive the master seed laser source input and the input data stream, and output a laser modulated data stream.
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公开(公告)号：US11025270B1
公开(公告)日：2021-06-01
申请号：US16902129
申请日：2020-06-15
Applicant: CABLE TELEVISION LABORATORIES, INC.
Inventor： Mu Xu , Zhensheng Jia , Jing Wang , Luis Alberto Campos
Abstract: A method for differentiator-based compression of digital data includes (a) multiplying a tap-weight vector by an original data vector to generate a predicted signal, the original data vector comprising N sequential samples of an original signal, N being an integer greater than or equal to one, (b) using a subtraction module, subtracting the predicted signal from a sample of the original signal to obtain an error signal, (c) using a quantization module, quantizing the error signal to obtain a quantized error signal, and (d) updating the tap-weight vector according to changing statistical properties of the original signal.
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公开(公告)号：US10917177B2
公开(公告)日：2021-02-09
申请号：US16600324
申请日：2019-10-11
Applicant: CABLE TELEVISION LABORATORIES, INC
Inventor： Zhensheng Jia , Luis Alberto Campos , Curtis Dean Knittie
Abstract: An injection locked transmitter for an optical communication network includes a master seed laser source input substantially confined to a single longitudinal mode, an input data stream, and a laser injected modulator including at least one slave laser having a resonator frequency that is injection locked to a frequency of the single longitudinal mode of the master seed laser source. The laser injected modulator is configured to receive the master seed laser source input and the input data stream, and output a laser modulated data stream.
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公开(公告)号：US10897310B2
公开(公告)日：2021-01-19
申请号：US16453848
申请日：2019-06-26
Applicant: CABLE TELEVISION LABORATORIES, INC.
Inventor： Haipeng Zhang , Zhensheng Jia , Mu Xu
Abstract: An optical line terminal includes an optical comb generator, N downlink channels Dk, and N uplink-photodetectors PDk. The optical comb generator is configured to generate a carrier signal having an optical-frequency-comb spectrum and including N optical tones Tk and N optical tones Rk, k={1, 2, . . . , N}. Each of the N downlink channels Dk is optically coupled to the optical comb generator and is configured to generate a respective downlink signal DSk that includes optical tone Tk modulated by downlink data. Each of the N uplink-photodetectors PDk is configured to receive a respective one of a plurality of modulated uplink signals USk, having optical tone Rk as a carrier signal.
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210.发明授权公开(公告)号：US10805058B2
公开(公告)日：2020-10-13
申请号：US15875336
申请日：2018-01-19
Applicant: CABLE TELEVISION LABORATORIES, INC
Inventor： Zhensheng Jia , Luis Alberto Campos , Curtis Dean Knittle , Jing Wang
Abstract: An optical network includes a transmitter portion configured to transmit a digitized stream of symbols over a digital optical link, a mapping unit disposed within the transmitter portion and configured to code the transmitted digitized stream of symbols with a mapping code prior to transmission over the digital optical link, a receiver portion configured to recover the coded stream of symbols from the digital optical link, and a demapping unit disposed within the receiver portion and configured to map the recovered coded stream of symbols into an uncoded digitized signal corresponding to the digitized stream of symbols at the transmitter portion prior to coding by the mapping unit.
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