Patents by Inventor Peng-Chun Peng

Peng-Chun Peng has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11223504
    Abstract: An optical network includes a transmitter portion configured to (i) precode an input digitized stream of symbols into a precoded symbol stream, (ii) pulse shape the precoded symbol stream with an eigenvalue channel matrix, and (iii) transmit the pulse shaped symbol stream over a digital optical link. The optical network further includes a receiver portion configured to (i) recover the pulse shaped symbol stream from the digital optical link, (ii) decompose eigenvalues of the eigenvalue channel matrix from the recovered symbol stream, and (iii) decode the decomposed symbol stream into an output symbol stream.
    Type: Grant
    Filed: May 4, 2020
    Date of Patent: January 11, 2022
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Mu Xu, Zhensheng Jia, Peng-Chun Peng, Siming Liu, Feng Lu, Curtis Dean Knittle
  • Publication number: 20200267031
    Abstract: An optical network includes a transmitter portion configured to (i) precode an input digitized stream of symbols into a precoded symbol stream, (ii) pulse shape the precoded symbol stream with an eigenvalue channel matrix, and (iii) transmit the pulse shaped symbol stream over a digital optical link. The optical network further includes a receiver portion configured to (i) recover the pulse shaped symbol stream from the digital optical link, (ii) decompose eigenvalues of the eigenvalue channel matrix from the recovered symbol stream, and (iii) decode the decomposed symbol stream into an output symbol stream.
    Type: Application
    Filed: May 4, 2020
    Publication date: August 20, 2020
    Inventors: Mu Xu, Zhensheng Jia, Peng-Chun Peng, Siming Liu, Feng Lu, Curtis Dean Knittle
  • Patent number: 10644908
    Abstract: An optical network includes a transmitter portion configured to (i) precode an input digitized stream of symbols into a precoded symbol stream, (ii) pulse shape the precoded symbol stream with an eigenvalue channel matrix, and (iii) transmit the pulse shaped symbol stream over a digital optical link. The optical network further includes a receiver portion configured to (i) recover the pulse shaped symbol stream from the digital optical link, (ii) decompose eigenvalues of the eigenvalue channel matrix from the recovered symbol stream, and (iii) decode the decomposed symbol stream into an output symbol stream.
    Type: Grant
    Filed: August 29, 2018
    Date of Patent: May 5, 2020
    Assignee: Cable Laboratories, Inc
    Inventors: Mu Xu, Zhensheng Jia, Peng-Chun Peng, Siming Liu, Feng Lu, Curtis Dean Knittle
  • Publication number: 20190068413
    Abstract: An optical network includes a transmitter portion configured to (i) precode an input digitized stream of symbols into a precoded symbol stream, (ii) pulse shape the precoded symbol stream with an eigenvalue channel matrix, and (iii) transmit the pulse shaped symbol stream over a digital optical link. The optical network further includes a receiver portion configured to (i) recover the pulse shaped symbol stream from the digital optical link, (ii) decompose eigenvalues of the eigenvalue channel matrix from the recovered symbol stream, and (iii) decode the decomposed symbol stream into an output symbol stream.
    Type: Application
    Filed: August 29, 2018
    Publication date: February 28, 2019
    Inventors: Mu Xu, Zhensheng Jia, Peng-Chun Peng, Siming Liu, Feng Lu, Curtis Dean Knittle
  • Patent number: 8428471
    Abstract: The present invention relates to an optical access system for dual service network, which mainly comprises an optical modulation device which is used to receive on-off keying (OOK) signal from cable network and radio frequency (RF) signal from wireless network, the optical modulation device then modulates the OOK signal and the RF signal to an optical signal and send out an output optical signal. Lastly, the output optical signal is being delivered to an optical receiving device through an optical fiber transmission channel, and the optical receiving device can access the OOK signal and RF signal from the output optical signal. In addition, the present invention does not require remote nodes (receiver side) to use any optical filter to discern on-off keying signal from cable network and RF signal from wireless network. The present invention can also apply to the field of wavelength-division multiplexing system.
    Type: Grant
    Filed: August 17, 2009
    Date of Patent: April 23, 2013
    Assignee: National Chiao Tung University
    Inventors: Jyehong Chen, Chun-Ting Lin, Po-Tsung Shih, Peng-Chun Peng, Sheng-Peng Dai, Sien Chi
  • Patent number: 8301034
    Abstract: The present invention discloses an optical modulation device, which comprises an electric signal generator generating an electric signal carrying a data signal; a first sinusoidal signal generator generating a first sinusoidal signal; an optical signal generator generating an input source optical signal; and an optoelectronic modulator (Mach-Zehnder modulator) receiving the input source optical signal, the electric signal and the first sinusoidal signal, biased to modify a transmission performance of the input source optical signal, modulating the input source optical signal with the electric signal and the first sinusoidal signal, and then sending out an output source optical signal carrying the electric signal and the first sinusoidal signal. The present invention realizes frequency multiplication, enables an optical signal to carry vector signals, and promotes the efficiency of broadband systems.
    Type: Grant
    Filed: September 25, 2009
    Date of Patent: October 30, 2012
    Assignee: National Chiao Tung University
    Inventors: Jye hong Chen, Chun-Ting Lin, Wen-Jr Jiang, Peng-Chun Peng, Po Tsung Shih, Er-zih Wong, Shih Kai Yeh, Sien Chi
  • Patent number: 8184988
    Abstract: The present invention relates to an optical modulating device with frequency multiplying technique for electrical signals, which primary comprises a mixer, which generates a mixed data signal from a first electrical signal and a second electrical signal. The mixed data signal is then received by a first phase shift device to have its phase shifted and becomes a first shifted signal. The first electrical signal is further received by a second phase shift device to have its phase shifted and becomes a second shifted signal. The present invention further comprises an integrated electro-optic modulator (Mach-Zehnder modulator), which is used to receive an input optical signal, the mixed data signal, the first shifted signal, the second shifted signal and the first electrical signal mentioned above, the integrated electro-optic modulator will then modulates the input optical signal into a frequency multiplying output optical signal that carries the first electrical signal and the second electrical signal.
    Type: Grant
    Filed: April 2, 2009
    Date of Patent: May 22, 2012
    Assignee: National Chiao Tung University
    Inventors: Jyehong Chen, Chun-Ting Lin, Sheng-Peng Dai, Peng-Chun Peng, Po-Tsung Shih, Sien Chi
  • Patent number: 8059335
    Abstract: An adjustable optical signal delay module which adjusts power of an amplified spontaneous emission generated by a semiconductor optical amplifier and feeds the adjusted amplified spontaneous emission back to the semiconductor optical amplifier in a direction opposite to an optical signal being amplified by the semiconductor optical amplifier is provided. The feedback of the adjusted amplified spontaneous emission varies a group refractive index of the semiconductor optical amplifier and delays the transmission of an optical signal through the semiconductor optical amplifier. By that arrangement, the adjustable optical delay module obviates the need for the pump laser conventionally required by a coherent population oscillation mechanism. The feedback optical loop includes a variable optical attenuator, an optical filter, and optical circulators. A user can control the delay timing of optical signals via adjusting optical power in the feedback optical loop.
    Type: Grant
    Filed: December 16, 2008
    Date of Patent: November 15, 2011
    Assignee: National Chiao Tung University
    Inventors: Jye hong Chen, Wei-Che Kao, Peng-Chun Peng, Chun-Ting Lin, Fang Ming Wu, Po Tsung Shih, Sien Chi
  • Patent number: 8059968
    Abstract: The present invention discloses a modulation device for generating an optical signal with quadruple frequency and the modulation method thereof. The modulation device in the present invention utilizes a commercial integrated modulator, a RF signal generator and a phase shifter to generate an optical signal with quadruple frequency. When the RF signal generator generates a first modulation signal, and the phase shifter shifts the first modulation signal by 90 degrees to generate a second modulation signal, the integrated modulator is biased to transmit the optical signal in maximum value and to modulate the first and second modulation signal so as to generate a output optical signal with quadruple frequency.
    Type: Grant
    Filed: May 6, 2008
    Date of Patent: November 15, 2011
    Assignee: National Chiao Tung University
    Inventors: Jye Hong Chen, Chun-Ting Lin, Po Tsung Shih, Peng-Chun Peng, Sheng Peng Dai, Wen Qiang Xue, Sien Chi
  • Publication number: 20100104294
    Abstract: The present invention discloses an optical modulation device, which comprises an electric signal generator generating an electric signal carrying a data signal; a first sinusoidal signal generator generating a first sinusoidal signal; an optical signal generator generating an input source optical signal; and an optoelectronic modulator(Mach-Zehnder modulator) receiving the input source optical signal, the electric signal and the first sinusoidal signal, biased to modify a transmission performance of the input source optical signal, modulating the input source optical signal with the electric signal and the first sinusoidal signal, and then sending out an output source optical signal carrying the electric signal and the first sinusoidal signal. The present invention realizes frequency multiplication, enables an optical signal to carry vector signals, and promotes the efficiency of broadband systems.
    Type: Application
    Filed: September 25, 2009
    Publication date: April 29, 2010
    Inventors: Jye Hong Chen, Chun-Ting Lin, Wen-Jr Jiang, Peng-Chun Peng, Po Tsung Shih, Er-Zih Wong, Shih Kai Yeh, Sien Chi
  • Publication number: 20100073763
    Abstract: The present invention relates to an adjustable optical signal delay module, particularly to a module, which adjusts power of an amplified spontaneous emission generated by a semiconductor optical amplifier and reversely feeds the adjusted amplified spontaneous emission back to the semiconductor optical amplifier to vary a group refractive index of the semiconductor optical amplifier and delay the timing of an optical signal, whereby the present invention can replace the pump laser conventionally required by a CPO mechanism. In the present invention, the feedback optical loop comprises a variable optical attenuator, an optical filter, and optical circulators. An user can control the delay timing of optical signals via adjusting optical power in the feedback optical loop. The present invention can decrease the fabrication cost of an optical signal delay module and reduce the volume thereof.
    Type: Application
    Filed: December 16, 2008
    Publication date: March 25, 2010
    Inventors: Jye Hong Chen, Wei-Che Kao, Peng-Chun Peng, Chun-Ting Lin, Fang Ming Wu, Po Tsung Shih, Sien Chi
  • Publication number: 20100008680
    Abstract: The present invention relates to an optical modulating device with frequency multiplying technique for electrical signals, which primary comprises a mixer, which generates a mixed data signal from a first electrical signal and a second electrical signal. The mixed data signal is then received by a first phase shift device to have its phase shifted and becomes a first shifted signal. The first electrical signal is further received by a second phase shift device to have its phase shifted and becomes a second shifted signal. The present invention further comprises an integrated electro-optic modulator (Mach-Zehnder modulator), which is used to receive an input optical signal, the mixed data signal, the first shifted signal, the second shifted signal and the first electrical signal mentioned above, the integrated electro-optic modulator will then modulates the input optical signal into a frequency multiplying output optical signal that carries the first electrical signal and the second electrical signal.
    Type: Application
    Filed: April 2, 2009
    Publication date: January 14, 2010
    Inventors: Jyehong Chen, Chun-Ting Lin, Sheng-Peng Dai, Peng-Chun Peng, Po-Tsung Shih, Sien Chi
  • Publication number: 20100008665
    Abstract: The present invention relates to an optical access system for dual service network, which mainly comprises an optical modulation device which is used to receive on-off keying (OOK) signal from cable network and radio frequency (RF) signal from wireless network, the optical modulation device then modulates the OOK signal and the RF signal to an optical signal and send out an output optical signal. Lastly, the output optical signal is being delivered to an optical receiving device through an optical fiber transmission channel, and the optical receiving device can access the OOK signal and RF signal from the output optical signal. In addition, the present invention does not require remote nodes (receiver side) to use any optical filter to discern on-off keying signal from cable network and RF signal from wireless network. The present invention can also apply to the field of wavelength-division multiplexing system.
    Type: Application
    Filed: August 17, 2009
    Publication date: January 14, 2010
    Inventors: Jyehong Chen, Chun-Ting Lin, Po-Tsung Shih, Peng-Chun Peng, Sheng-Peng Dai, Sien Chi
  • Publication number: 20090231685
    Abstract: The present invention relates to a technique for tuning the transmission time of optical signal, which adopts an optical amplifier with a bending structure for enhancing the tunable time of optical signal. The effect of tunable time of optical signal can be achieved by adjusting the gain of the optical amplifier.
    Type: Application
    Filed: August 11, 2008
    Publication date: September 17, 2009
    Inventors: Jyehong CHEN, Wei-Che Kao, Peng-Chun Peng, Chun-Ting Lin, Po Tsung Shih, Sien Chi
  • Publication number: 20090214213
    Abstract: The present invention discloses a modulation device for generating an optical signal with quadruple frequency and the modulation method thereof. The modulation device in the present invention utilizes a commercial integrated modulator, a RF signal generator and a phase shifter to generate an optical signal with quadruple frequency. When the RF signal generator generates a first modulation signal, and the phase shifter shifts the first modulation signal by 90 degrees to generate a second modulation signal, the integrated modulator is biased to transmit the optical signal in maximum value and to modulate the first and second modulation signal so as to generate a output optical signal with quadruple frequency.
    Type: Application
    Filed: May 6, 2008
    Publication date: August 27, 2009
    Inventors: Jye Hong CHEN, Chung-Ting Lin, Po Tsung Shih, Peng-Chun Peng, Sheng Peng Dai, Wen Qiang Xue, Sien Chi
  • Patent number: 7043103
    Abstract: The present invention is a self-healing fiber Bragg grating sensor system which comprises a central office, at least one network node, at least one 2×2 optical switch and at least one fiber Bragg grating. The network node can be made of optical switch. When the fiber for the sensor system is broken, sensing signals are discriminated in different paths provided by the network nodes to avoid stop working once the fiber is broken, by which the self-healing ability of the system is greatly improved. Besides, by using the structure of fiber laser in the present invention, the power output and the signal-to-noise ratio can be greatly increased. Accordingly, the present invention is to design a fiber sensor system with low cost and high capacity and with capability of self-healing.
    Type: Grant
    Filed: May 5, 2004
    Date of Patent: May 9, 2006
    Assignee: National Chiao Tung University
    Inventors: Sien Chi, Peng-Chun Peng, Wen-Piao Lin
  • Publication number: 20050249448
    Abstract: The present invention is a self-healing fiber Bragg grating sensor system which comprises a central office, at least one network node, at least one 2×2 optical switch and at least one fiber Bragg grating. The network node can be made of optical switch. When the fiber for the sensor system is broken, sensing signals are discriminated in different paths provided by the network nodes to avoid stop working once the fiber is broken, by which the self-healing ability of the system is greatly improved. Besides, by using the structure of fiber laser in the present invention, the power output and the signal-to-noise ratio can be greatly increased. Accordingly, the present invention is to design a fiber sensor system with low cost and high capacity and with capability of self-healing.
    Type: Application
    Filed: May 5, 2004
    Publication date: November 10, 2005
    Inventors: Sien Chi, Peng-Chun Peng, Wen-Piao Lin
  • Patent number: 6879742
    Abstract: The present invention provides a fiber Bragg grating sensor system, which comprises a light-division device having receiving-sending terminals and sensing terminals, a light generating device and a photo detector coupled with receiving-sending terminal of a light-division device, sensing fibers coupled with the sensing terminals, said sensing fiber comprising a fiber Bragg grating, a information processor connecting with said photo detector. The light-division device distribute different optical energy ratio from said receiving-sending terminals to said sensing terminals. The intensity and wavelength division multiplexing can make different intensity for the information addressed of different sensing fiber on the same optical channel to enhance the sensing capacity of fiber Bragg grating sensor system.
    Type: Grant
    Filed: May 13, 2003
    Date of Patent: April 12, 2005
    Assignee: National Chiao Tung University
    Inventors: Sien Chi, Hong-Yih Tseng, Peng-Chun Peng, Jia-He Lin
  • Publication number: 20040213501
    Abstract: The present invention provides a fiber Bragg grating sensor system, which comprises a light-division device having receiving-sending terminals and sensing terminals, a light generating device and a photo detector coupled with receiving-sending terminal of a light-division device, sensing fibers coupled with the sensing terminals, said sensing fiber comprising a fiber Bragg grating, a information processor connecting with said photo detector. The light-division device distribute different optical energy ratio from said receiving-sending terminals to said sensing terminals. The intensity and wavelength division multiplexing can make different intensity for the information addressed of different sensing fiber on the same optical channel to enhance the sensing capacity of fiber Bragg grating sensor system.
    Type: Application
    Filed: May 13, 2003
    Publication date: October 28, 2004
    Applicant: NATIONAL CHIAO TUNG UNIVERSITY
    Inventors: Sien Chi, Hong-Yih Tseng, Peng-Chun Peng, Jia-He Lin
  • Patent number: 6647160
    Abstract: The present invention provides a fiber Bragg grating system, which employs a linear-cavity fiber laser scheme to develop a high resolution sensor system. The fiber Bragg grating sensor device is located in one end for fiber laser reflecting, and in the other end is a fiber loop mirror. It forms a linear-cavity fiber laser scheme basis. The end for laser output parallel connecting with two fiber Bragg grating filters. Because of the spectrum shift of the fiber Bragg grating sensor when temperature changed, it may detect the optic power reflectivity for the variation of the temperature. Furthermore, it can resolve the temperature up to 10−4° C. theoretically and can be applied for strain and temperature sensing with high precision.
    Type: Grant
    Filed: June 17, 2002
    Date of Patent: November 11, 2003
    Assignee: National Chiao Tung University
    Inventors: Sien Chi, Hong-Yih Tseng, Peng-Chun Peng