Patents by Inventor Stephen G. Hosking
Stephen G. Hosking 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).
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Publication number: 20120093504Abstract: An optoelectronic transceiver includes an optoelectronic transmitter, an optoelectronic receiver, memory, and an interface. The memory is configured to store digital values representative of operating conditions of the optoelectronic transceiver. The interface is configured to receive from a host a request for data associated with a particular memory address, and respond to the host with a specific digital value of the digital values. The specific digital value is associated with the particular memory address received form the host. The optoelectronic transceiver may further include comparison logic configured to compare the digital values with limit values to generate flag values, wherein the flag values are stored as digital values in the memory.Type: ApplicationFiled: December 23, 2011Publication date: April 19, 2012Inventors: Lewis B. Aronson, Stephen G. Hosking
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Patent number: 8086100Abstract: The optoelectronic transceiver includes an optoelectronic transmitter, an optoelectronic receiver, memory, and an interface. The memory is configured to store digital values representative of operating conditions of the optoelectronic transceiver. The interface is configured to receive from a host a request for data associated with a particular memory address, and respond to the host with a specific digital value of the digital values. The specific digital value is associated with the particular memory address received form the host. The optoelectronic transceiver may further include comparison logic configured to compare the digital values with limit values to generate flag values, wherein the flag values are stored as digital values in the memory.Type: GrantFiled: March 9, 2009Date of Patent: December 27, 2011Assignee: Finisar CorporationInventors: Lewis B. Aronson, Stephen G. Hosking
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Publication number: 20080187319Abstract: In one example, an optoelectronic transceiver includes an optical transmitter with which a set of operating wavelengths is associated. A temperature sensor and heat transfer device are thermally coupled with the optical transmitter, and drive circuitry is provided that is in communication with the heat transfer device. The optoelectronic transceiver further includes a control device in communication with the temperature sensor and with the driver circuitry. The control device includes a memory within which is stored several temperature control values, where each of the temperature control values is associated with a respective operating wavelength of the optical transmitter. Finally, the control device includes logic coupled with the memory, wherein an output of the logic is a command signal that concerns operation of the driver circuitry and corresponds with a selected operating wavelength. The command signal is based in part upon a temperature control value and input from the temperature sensor.Type: ApplicationFiled: December 6, 2005Publication date: August 7, 2008Inventors: James Stewart, Stephen G. Hosking, Anthony Ho, Andreas Weber
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Patent number: 7359643Abstract: The optical transceiver module includes a housing and a plurality of components disposed at least partially within the housing. The components include an optical transmitter, an optical receiver, and a power controller integrated circuit (IC). The power controller IC is electrically coupled to at least one of the plurality of components. The power controller IC is configured to perform power supply functions for the optical transceiver module. Also, the power controller IC includes multiple voltage regulators providing power to the components at two or more voltages.Type: GrantFiled: July 3, 2003Date of Patent: April 15, 2008Assignee: Finisar CorporationInventors: Lewis B. Aronson, Greta L. Light, Stephen G. Hosking
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Patent number: 7184668Abstract: A single-chip integrated circuit, sometimes called a controller, controls operation of a transceiver having a laser transmitter and a photodiode receiver. The controller includes memory for storing information related to the transceiver, and analog to digital conversion circuitry for receiving a plurality of analog signals from the laser transmitter and photodiode receiver, converting the received analog signals into digital values, and storing the digital values in predefined locations within the memory. Comparison logic compares one or more of these digital values with predetermined setpoints, generates flag values based on the comparisons, and stores the flag values in predefined locations within the memory. Control circuitry in the controller shuts off the laser transmitter in response to comparisons of signals with predetermined setpoints that indicate potential eye safety hazards.Type: GrantFiled: September 4, 2003Date of Patent: February 27, 2007Assignee: Finisar CorporationInventors: Lewis B. Aronson, Stephen G. Hosking
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Patent number: 7079775Abstract: A controller for controlling a transceiver having a laser transmitter and a photodiode receiver. The controller includes memory for storing information related to the transceiver, and analog to digital conversion circuitry for receiving a plurality of analog signals from the laser transmitter and photodiode receiver, converting the received analog signals into digital values, and storing the digital values in predefined locations within the memory. Comparison logic compares one or more of these digital values with limit values, generates flag values based on the comparisons, and stores the flag values in predefined locations within the memory. Control circuitry in the controller controls the operation of the laser transmitter in accordance with one or more values stored in the memory. A serial interface is provided to enable a host device to read from and write to locations within the memory.Type: GrantFiled: February 5, 2001Date of Patent: July 18, 2006Assignee: Finisar CorporationInventors: Lewis B. Aronson, Stephen G. Hosking
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Patent number: 6957021Abstract: A controller for controlling a transceiver having a laser transmitter and a photodiode receiver. The controller includes memory for storing information related to the transceiver, and analog to digital conversion circuitry for receiving a plurality of analog signals from the laser transmitter and photodiode receiver, converting the received analog signals into digital values, and storing the digital values in predefined locations within the memory. Comparison logic compares one or more of these digital values with limit values, generates flag values based on the comparisons, and stores the flag values in predefined locations within the memory. Control circuitry in the controller controls the operation of the laser transmitter in accordance with one or more values stored in the memory. A serial interface is provided to enable a host device to read from and write to locations within the memory.Type: GrantFiled: November 13, 2003Date of Patent: October 18, 2005Assignee: Finisar CorporationInventors: Lewis B. Aronson, Stephen G. Hosking
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Patent number: 6941077Abstract: Circuitry for monitoring operation of an optoelectronic device having a laser transmitter and a photodiode receiver includes analog to digital conversion circuitry for receiving a plurality of analog signals from the laser transmitter and photodiode receiver, converting the received analog signals into digital values, and storing the digital values in predefined memory-mapped locations within the optoelectronic device. Comparison logic compares one or more of these digital values with limit values, generates flag values based on the comparisons, and stores the flag values in predefined locations within the optoelectronic device. An interface enables a host device to read from and write to host-specified memory mapped locations within the optoelectronic device.Type: GrantFiled: March 12, 2004Date of Patent: September 6, 2005Assignee: Finisar CorporationInventors: Lewis B. Aronson, Stephen G. Hosking
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Publication number: 20040240886Abstract: A controller for controlling a transceiver having a laser transmitter and a photodiode receiver. The controller includes memory for storing information related to the transceiver, and analog to digital conversion circuitry for receiving a plurality of analog signals from the laser transmitter and photodiode receiver, converting the received analog signals into digital values, and storing the digital values in predefined locations within the memory. Comparison logic compares one or more of these digital values with limit values, generates flag values based on the comparisons, and stores the flag values in predefined locations within the memory. Control circuitry in the controller controls the operation of the laser transmitter in accordance with one or more values stored in the memory. A serial interface is provided to enable a host device to read from and write to locations within the memory.Type: ApplicationFiled: June 18, 2004Publication date: December 2, 2004Applicant: Finisar CorporationInventors: Lewis B. Aronson, Stephen G. Hosking
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Publication number: 20040175172Abstract: Circuitry for monitoring operation of an optoelectronic device having a laser transmitter and a photodiode receiver includes analog to digital conversion circuitry for receiving a plurality of analog signals from the laser transmitter and photodiode receiver, converting the received analog signals into digital values, and storing the digital values in predefined memory-mapped locations within the optoelectronic device. Comparison logic compares one or more of these digital values with limit values, generates flag values based on the comparisons, and stores the flag values in predefined locations within the optoelectronic device. An interface enables a host device to read from and write to host-specified memory mapped locations within the optoelectronic device.Type: ApplicationFiled: March 12, 2004Publication date: September 9, 2004Applicant: Finisar CorporationInventors: Lewis B. Aronson, Stephen G. Hosking
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Publication number: 20040165624Abstract: A method for compensating for wavelength drift in a fiber-optic laser transmitter includes 1) controlling a temperature within the optoelectronic assembly at a defined level; 2) driving the optoelectronic assembly to emit light, wherein the emitted light has a wavelength that is within a channel of operation, the channel of operation including a range of wavelengths centered around a channel center wavelength; 3) accessing from memory within the optoelectronic assembly a control value associated with the temperature of the optoelectronic assembly at defined points within an operational lifetime of the optoelectronic assembly; and 4) recalculating the defined level by reference to the control value, whereby a wavelength of the optoelectronic assembly is maintained within the channel of operation despite an expected drift of wavelength.Type: ApplicationFiled: November 4, 2003Publication date: August 26, 2004Inventors: James Stewart, Stephen G. Hosking, Anthony Ho, Andreas Weber
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Publication number: 20040161248Abstract: Method and apparatuses for compensating for wavelength drift in a fiber-optic laser transmitter includes 1) controlling a temperature within the optoelectronic assembly at a defined level; 2) driving the optoelectronic assembly to emit light, wherein the emitted light has a wavelength that is within a channel of operation, the channel of operation including a range of wavelengths centered around a channel center wavelength; 3) accessing from memory within the optoelectronic assembly a control value associated with the temperature of the optoelectronic assembly at defined points within an operational lifetime of the optoelectronic assembly; and 4) recalculating the defined level by reference to the control value, whereby a wavelength of the optoelectronic assembly is maintained within the channel of operation despite an expected drift of wavelength.Type: ApplicationFiled: February 20, 2004Publication date: August 19, 2004Inventors: James Stewart, Stephen G. Hosking
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Publication number: 20040161001Abstract: A method for calibrating a multi-channel laser emitter in an optoelectronic transceiver or an optoelectronic transmitter for a first wavelength includes monitoring the wavelength of optical signals from the laser emitter while varying its temperature as well as other operating conditions, and then storing calibration information in the memory of a microprocessor. The initial values of the calibrating procedure are reset and the calibrating procedure is repeated to obtain calibration information for a next desired wavelength.Type: ApplicationFiled: December 2, 2003Publication date: August 19, 2004Applicant: Finisar CorporationInventors: James Stewart, Stephen G. Hosking, Anthony Ho, Andreas Weber
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Publication number: 20040114646Abstract: A method for calibrating a multi-channel laser emitter in an optoelectronic transceiver or an optoelectronic transmitter for a first wavelength includes monitoring the wavelength of optical signals from the laser emitter while varying its temperature as well as other operating conditions, and then storing calibration information in the memory of a microprocessor. The initial values of the calibrating procedure are reset and the calibrating procedure is repeated to obtain calibration information for a next desired wavelength.Type: ApplicationFiled: November 4, 2003Publication date: June 17, 2004Inventors: James Stewart, Stephen G. Hosking, Anthony Ho, Andreas Weber
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Publication number: 20040105679Abstract: A single-chip integrated circuit, sometimes called a controller, controls operation of a transceiver having a laser transmitter and a photodiode receiver. The controller includes memory for storing information related to the transceiver, and analog to digital conversion circuitry for receiving a plurality of analog signals from the laser transmitter and photodiode receiver, converting the received analog signals into digital values, and storing the digital values in predefined locations within the memory. Comparison logic compares one or more of these digital values with predetermined setpoints, generates flag values based on the comparisons, and stores the flag values in predefined locations within the memory. Control circuitry in the controller shuts off the laser transmitter in response to comparisons of signals with predetermined setpoints that indicate potential eye safety hazards.Type: ApplicationFiled: November 13, 2003Publication date: June 3, 2004Applicant: Finisar CorporationInventors: Lewis B. Aronson, Stephen G. Hosking
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Publication number: 20040100687Abstract: A controller for controlling a transceiver having a laser transmitter and a photodiode receiver. The controller includes memory for storing information related to the transceiver, and analog to digital conversion circuitry for receiving a plurality of analog signals from the laser transmitter and photodiode receiver, converting the received analog signals into digital values, and storing the digital values in predefined locations within the memory. Comparison logic compares one or more of these digital values with limit values, generates flag values based on the comparisons, and stores the flag values in predefined locations within the memory. Control circuitry in the controller controls the operation of the laser transmitter in accordance with one or more values stored in the memory. A serial interface is provided to enable a host device to read from and write to locations within the memory.Type: ApplicationFiled: November 13, 2003Publication date: May 27, 2004Applicant: Finisar CorporationInventors: Lewis B. Aronson, Stephen G. Hosking
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Publication number: 20040067060Abstract: The optical transceiver module includes an optical transmitter and an optical receiver. The optical transceiver module also includes an internal serial bus and a plurality of addressable components electrically coupled to the internal serial bus. Each of the addressable components included a serial interface for communicating with the internal serial bus, and a memory. Each addressable component also includes a unique address or chip select logic coupled to a controller via a chip select line. This allows data to be addressed to specific addressable components. The addressable components may include a laser driver, a laser bias controller, a power controller, a pre-amplifier, a post-amplifier, a laser wavelength controller, a main controller, a electrothermal cooler, an analog-to-digital converter, a digital-to analog converter, an APD bias controller, or any combination of the aforementioned components.Type: ApplicationFiled: October 8, 2002Publication date: April 8, 2004Inventors: Lewis B. Aronson, Stephen G. Hosking, Greta L. Light, Darin James Douma, Mark J. Farley
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Publication number: 20040047635Abstract: A single-chip integrated circuit, sometimes called a controller, controls operation of a transceiver having a laser transmitter and a photodiode receiver. The controller includes memory for storing information related to the transceiver, and analog to digital conversion circuitry for receiving a plurality of analog signals from the laser transmitter and photodiode receiver, converting the received analog signals into digital values, and storing the digital values in predefined locations within the memory. Comparison logic compares one or more of these digital values with predetermined setpoints, generates flag values based on the comparisons, and stores the flag values in predefined locations within the memory. Control circuitry in the controller shuts off the laser transmitter in response to comparisons of signals with predetermined setpoints that indicate potential eye safety hazards.Type: ApplicationFiled: September 4, 2003Publication date: March 11, 2004Applicant: Finisar CorporationInventors: Lewis B. Aronson, Stephen G. Hosking
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Publication number: 20040022543Abstract: The optoelectronic transceiver includes first and second controller ICs. Each controller IC includes logic, a memory, an interface, and at least one input port. Each memory is configured to store digital diagnostic data and has a unique serial device address to allow a host access to each of these controller ICs separately and independently. At least some of the digital diagnostic data is common to both the first controller IC and the second controller IC. The inclusion of two controller ICs allows the same diagnostic data to be stored in completely different memory mapped locations. This allows hosts that are preconfigured differently to read different memory mapped locations on the different controller ICs to obtain the same diagnostic data.Type: ApplicationFiled: July 8, 2003Publication date: February 5, 2004Inventors: Stephen G. Hosking, James Stewart, Anthony Ho
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Publication number: 20040008996Abstract: The optical transceiver module includes a housing and a plurality of components disposed at least partially within the housing. The components include an optical transmitter, an optical receiver, and a power controller integrated circuit (IC). The power controller IC is electrically coupled to at least one of the plurality of components. The power controller IC is configured to perform power supply functions for the optical transceiver module. Also, the power controller IC includes multiple voltage regulators providing power to the components at two or more voltages.Type: ApplicationFiled: July 3, 2003Publication date: January 15, 2004Inventors: Lewis B. Aronson, Greta L. Light, Stephen G. Hosking