Patents by Inventor Hengju Cheng

Hengju Cheng 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: 9787264
    Abstract: Techniques and mechanisms for providing signal communication with a configurable transceiver circuit. In an embodiment, an integrated circuit comprises transceiver circuitry including an output stage and current mirror circuitry. The output stage is coupled to receive a differential signal pair and to provide at least one output signal based on the differential signal pair. In another embodiment, configuration logic is operable to select between a first mode and a second mode of the transceiver circuit. The first mode includes the current mirror circuitry being disabled from providing a current signal to the output stage, and a first circuit path being closed to provide voltage to the output stage. The second mode includes the first circuit path being open and the current mirror circuitry being enabled to provide a current signal to the output stage.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: October 10, 2017
    Assignee: Intel Corporation
    Inventors: Miaobin Gao, Christine M. Krause, Hiu-Chin Wu, Hengju Cheng
  • Publication number: 20160301372
    Abstract: Techniques and mechanisms for providing signal communication with a configurable transceiver circuit. In an embodiment, an integrated circuit comprises transceiver circuitry including an output stage and current mirror circuitry. The output stage is coupled to receive a differential signal pair and to provide at least one output signal based on the differential signal pair. In another embodiment, configuration logic is operable to select between a first mode and a second mode of the transceiver circuit. The first mode includes the current mirror circuitry being disabled from providing a current signal to the output stage, and a first circuit path being closed to provide voltage to the output stage. The second mode includes the first circuit path being open and the current mirror circuitry being enabled to provide a current signal to the output stage.
    Type: Application
    Filed: December 20, 2013
    Publication date: October 13, 2016
    Inventors: Miaobin GAO, Christine M. KRAUSE, Hiu-Chin Wu, Hengju CHENG
  • Patent number: 9250406
    Abstract: Embodiments of the present disclosure provide techniques and configurations for routing signals of an electro-optical assembly using a glass bridge. In one embodiment, an electro-optical assembly includes a laser die having a laser device and a glass bridge electrically coupled with the laser die by one or more interconnect structures, the glass bridge including electrical routing features configured to route electrical signals to the laser die from a transmitter device. Other embodiments may be described and/or claimed.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: February 2, 2016
    Assignee: Intel Corporation
    Inventors: Peter L. D. Chang, Edris M. Mohammed, Henning Braunisch, Hengju Cheng
  • Patent number: 9252884
    Abstract: Described herein is an apparatus for improving bandwidth of a transceiver system e.g., a Universal Serial Bus (USB) micro-B connector. The apparatus comprises a first pair of lens units, each lens unit of the pair positioned on either side of an input-output (I/O) bus interface, the pair of lens units to send and receive optical signals respectively; a first housing to shield the first pair of lens units and for physically coupling the I/O bus interface and the first pair of lens units to a receptacle; and a key to grasp the first housing and to lock the first housing with the receptacle.
    Type: Grant
    Filed: October 21, 2013
    Date of Patent: February 2, 2016
    Assignee: Intel Corporation
    Inventors: Jamyuen Ko, Hengju Cheng
  • Patent number: 9239439
    Abstract: Embodiments of the invention are directed to an optical USB (OUSB) to enhance the data rate of USB by adding super-high data rate (e.g. 10 Gbps) optical communication on top of its current specification so that backward compatibility is achievable. Mechanical tolerances may be achieved by using embedded lenses to expand a beam emerging from the connector prior to entering its mating connector and using an identical lens in the mating connector to collimate the beam back onto a fiber.
    Type: Grant
    Filed: October 29, 2013
    Date of Patent: January 19, 2016
    Assignee: Intel Corporation
    Inventors: Jamyuen Ko, Hengju Cheng, Tom Mader
  • Patent number: 9112601
    Abstract: Embodiments of the present disclosure provide optical link handshake techniques and configurations. In one embodiment, an optical module includes a laser driver corresponding with a channel of the optical module, a signal detector corresponding with the channel, and a link handshake state machine configured to control the laser driver to generate a connect pulse of a link handshake process to test an optical link between the channel and a corresponding channel of another optical module and monitor the signal detector to detect a connect pulse from the another optical module. Other embodiments may be described and/or claimed.
    Type: Grant
    Filed: March 27, 2012
    Date of Patent: August 18, 2015
    Assignee: Intel Corporation
    Inventors: Miaobin Gao, Christine M. Krause, Hui-Chin Wu, Hengju Cheng
  • Patent number: 9039304
    Abstract: A connection port provides electrical and/or optical interface capability. The combined electrical and optical interface port may include an optical communication light engine within the connection port itself. The connection port includes a connector housing, an electrical interface assembly, and an optical interface assembly incorporated together. One implementation of the optical communication light engine includes a laser diode to generate optical signals, a photo diode to receive optical signals, and an optical integrated circuit (IC) to control optical interface.
    Type: Grant
    Filed: September 18, 2009
    Date of Patent: May 26, 2015
    Inventors: Jamyuen Ko, Hengju Cheng, Simon S. Lee
  • Patent number: 9011022
    Abstract: A connection port provides electrical and/or optical interface capability. The combined electrical and optical interface port may include an optical communication light engine within the connection port itself. The connection port includes a connector housing, an electrical interface assembly, and an optical interface assembly incorporated together. One implementation of the optical communication light engine includes a laser diode to generate optical signals, a photo diode to receive optical signals, and an optical integrated circuit (IC) to control optical interface.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: April 21, 2015
    Assignee: Intel Corporation
    Inventors: Jamyuen Ko, Hengju Cheng, Simon S. Lee
  • Patent number: 8938164
    Abstract: A system includes two optical modules that perform auto-setting of the optical links between the optical modules. One optical module sends an optical signal with a test pattern to the other optical module. If the receiving module determines that the test pattern is successfully received, it sends a pass indication to the transmitting module, and the transmitting module can configure its driver path in accordance with a transmit current setting used to transmit the test pattern. If the test pattern is not successfully received, the receiving module sends a fail indication, and the transmitting module can increase the transmit current setting and resend the test pattern. When the system includes multiple optical channels, one channel can be tested while feedback is provided on another channel. The system can iterate through all optical channels until they are all configured.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: January 20, 2015
    Assignee: Intel Corporation
    Inventors: Miaobin Gao, Christine M. Krause, Hui-Chin Wu, Hengju Cheng
  • Patent number: 8913639
    Abstract: Embodiments of the present disclosure provide laser safety techniques and configurations. In one embodiment, an optical module includes a first die including a laser configured to transmit optical signals, a first node electrically coupled with the laser, and a second node electrically coupled with the laser, and a second die including a power supply line configured to provide power to the laser, a third node electrically coupled with the power supply line and electrically coupled with the first node to provide the power to the laser, a fourth node electrically coupled with the second node of the first die, and a switch configured to prevent the power of the power supply line from reaching the laser through the third node based on a voltage of the fourth node when a laser fault event occurs. Other embodiments may be described and/or claimed.
    Type: Grant
    Filed: March 27, 2012
    Date of Patent: December 16, 2014
    Assignee: Intel Corporation
    Inventors: Miaobin Gao, Hui-Chin Wu, Christine M. Krause, Hengju Cheng
  • Publication number: 20140186046
    Abstract: Embodiments of the present disclosure provide laser safety techniques and configurations. In one embodiment, an optical module includes a first die including a laser configured to transmit optical signals, a first node electrically coupled with the laser, and a second node electrically coupled with the laser, and a second die including a power supply line configured to provide power to the laser, a third node electrically coupled with the power supply line and electrically coupled with the first node to provide the power to the laser, a fourth node electrically coupled with the second node of the first die, and a switch configured to prevent the power of the power supply line from reaching the laser through the third node based on a voltage of the fourth node when a laser fault event occurs. Other embodiments may be described and/or claimed.
    Type: Application
    Filed: March 27, 2012
    Publication date: July 3, 2014
    Inventors: Miaobin Gao, Hui-Chin Wu, Christine M. Krause, Hengju Cheng
  • Patent number: 8768179
    Abstract: A power management arrangement for low power optical transceiver such as those that may be integrated into a personal computer or server may periodically put itself into a power conservation or sleep mode which assures the transceiver is available upon wake-up.
    Type: Grant
    Filed: March 8, 2012
    Date of Patent: July 1, 2014
    Assignee: Intel Corporation
    Inventors: Hui-chin Wu, Miaobin Gao, Hengju Cheng
  • Publication number: 20140178009
    Abstract: A connection port provides electrical and/or optical interface capability. The combined electrical and optical interface port may include an optical communication light engine within the connection port itself. The connection port includes a connector housing, an electrical interface assembly, and an optical interface assembly incorporated together. One implementation of the optical communication light engine includes a laser diode to generate optical signals, a photo diode to receive optical signals, and an optical integrated circuit (IC) to control optical interface.
    Type: Application
    Filed: December 19, 2013
    Publication date: June 26, 2014
    Inventors: Jamyuen Ko, Hengju Cheng, Simon S. Lee
  • Publication number: 20140177625
    Abstract: Embodiments of the present disclosure provide techniques and configurations for routing signals of an electro-optical assembly using a glass bridge. In one embodiment, an electro-optical assembly includes a laser die having a laser device and a glass bridge electrically coupled with the laser die by one or more interconnect structures, the glass bridge including electrical routing features configured to route electrical signals to the laser die from a transmitter device. Other embodiments may be described and/or claimed.
    Type: Application
    Filed: December 20, 2012
    Publication date: June 26, 2014
    Inventors: Peter L.D. Chang, Edris M. Mohammed, Henning Braunisch, Hengju Cheng
  • Publication number: 20140133846
    Abstract: Embodiments of the present disclosure provide optical link handshake techniques and configurations. In one embodiment, an optical module includes a laser driver corresponding with a channel of the optical module, a signal detector corresponding with the channel, and a link handshake state machine configured to control the laser driver to generate a connect pulse of a link handshake process to test an optical link between the channel and a corresponding channel of another optical module and monitor the signal detector to detect a connect pulse from the another optical module. Other embodiments may be described and/or claimed.
    Type: Application
    Filed: March 27, 2012
    Publication date: May 15, 2014
    Inventors: Miaobin Gao, Christine M. Krause, Hui-Chin Wu, Hengju Cheng
  • Publication number: 20140133811
    Abstract: Embodiments of the invention are directed to an optical USB (OUSB) to enhance the data rate of USB by adding super-high data rate (e.g. 10 Gbps) optical communication on top of its current specification so that backward compatibility is achievable. Mechanical tolerances may be achieved by using embedded lenses to expand a beam emerging from the connector prior to entering its mating connector and using an identical lens in the mating connector to collimate the beam back onto a fiber.
    Type: Application
    Filed: October 29, 2013
    Publication date: May 15, 2014
    Inventors: Jamyuen Ko, Hengju Cheng, Tom Mader
  • Publication number: 20140093233
    Abstract: A system includes two optical modules that perform auto-setting of the optical links between the optical modules. One optical module sends an optical signal with a test pattern to the other optical module. If the receiving module determines that the test pattern is successfully received, it sends a pass indication to the transmitting module, and the transmitting module can configure its driver path in accordance with a transmit current setting used to transmit the test pattern. If the test pattern is not successfully received, the receiving module sends a fail indication, and the transmitting module can increase the transmit current setting and resend the test pattern. When the system includes multiple optical channels, one channel can be tested while feedback is provided on another channel. The system can iterate through all optical channels until they are all configured.
    Type: Application
    Filed: September 28, 2012
    Publication date: April 3, 2014
    Inventors: Miaobin Gao, Christine M. Krause, Hui-Chin Wu, Hengju Cheng
  • Publication number: 20140050491
    Abstract: Described herein is an apparatus for improving bandwidth of a transceiver system e.g., a Universal Serial Bus (USB) micro-B connector. The apparatus comprises a first pair of lens units, each lens unit of the pair positioned on either side of an input-output (I/O) bus interface, the pair of lens units to send and receive optical signals respectively; a first housing to shield the first pair of lens units and for physically coupling the I/O bus interface and the first pair of lens units to a receptacle; and a key to grasp the first housing and to lock the first housing with the receptacle.
    Type: Application
    Filed: October 21, 2013
    Publication date: February 20, 2014
    Inventors: Jamyuen KO, Hengju CHENG
  • Patent number: 8613561
    Abstract: Embodiments of the invention are directed to an optical USB (OUSB) to enhance the data rate of USB by adding super-high data rate (e.g. 10 Gbps) optical communication on top of its current specification so that backward compatibility is achievable. Mechanical tolerances may be achieved by using embedded lenses to expand a beam emerging from the connector prior to entering its mating connector and using an identical lens in the mating connector to collimate the beam back onto a fiber.
    Type: Grant
    Filed: February 4, 2013
    Date of Patent: December 24, 2013
    Assignee: Intel Corporation
    Inventors: Jamyuen Ko, Hengju Cheng, Tom Mader
  • Patent number: 8571413
    Abstract: Described herein is an apparatus for improving bandwidth of a transceiver system e.g., a Universal Serial Bus (USB) micro-B connector. The apparatus comprises a first pair of lens units, each lens unit of the pair positioned on either side of an input-output (I/O) bus interface, the pair of lens units to send and receive optical signals respectively; a first housing to shield the first pair of lens units and for physically coupling the I/O bus interface and the first pair of lens units to a receptacle; and a key to grasp the first housing and to lock the first housing with the receptacle.
    Type: Grant
    Filed: September 24, 2010
    Date of Patent: October 29, 2013
    Assignee: Intel Corporation
    Inventors: Jamyuen Ko, Hengju Cheng