Patents by Inventor Irene Quek
Irene Quek 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: 20240094986Abstract: A method and device for data conversion in a matrix compute apparatus. The apparatus includes an input buffer (IB) that receives one or more matrix inputs characterized by a first format and a compute device coupled to the IB device that is configured to determine a combined matrix output. The compute device determines a first matrix output using a first input portion of the matrix input and determines a second matrix output using a second input portion. The compute device then determines a combined matrix output in a second format using the first and second matrix outputs. Within the compute device, an alignment device can determine a rounded matrix output from the combined matrix output, and a partial products reduction (PPR) device can determine a reduced matrix output in a third format using the rounded matrix output, which is stored in an output buffer (OB) coupled to the compute device.Type: ApplicationFiled: August 26, 2022Publication date: March 21, 2024Inventors: Ilya LYUBOMIRSKY, Irene QUEK, Arun TIRUVUR, Satyam SRIVASTAVA, Sudeep BHOJA
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Patent number: 10411684Abstract: The present invention relates generally to integrated circuits. More particularly, the present invention provides a circuit and method for a CMOS interpolator for an output clock signal with a desirable phase for a high speed serializer/deserializer device. In a specific embodiment, the present invention provides a phase interpolator device that mixes phase-shifted clock signals according to a predetermined weight values at predetermined time intervals. There are other embodiments as well.Type: GrantFiled: October 5, 2018Date of Patent: September 10, 2019Assignee: INPHI CORPORATIONInventor: Irene Quek
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Publication number: 20190052253Abstract: The present invention relates generally to integrated circuits. More particularly, the present invention provides a circuit and method for a CMOS interpolator for an output clock signal with a desirable phase for a high speed serializer/deserializer device. In a specific embodiment, the present invention provides a phase interpolator device that mixes phase-shifted clock signals according to a predetermined weight values at predetermined time intervals. There are other embodiments as well.Type: ApplicationFiled: October 5, 2018Publication date: February 14, 2019Inventor: Irene QUEK
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Patent number: 10128827Abstract: The present invention relates generally to integrated circuits. More particularly, the present invention provides a circuit and method for a CMOS interpolator for an output clock signal with a desirable phase for a high speed serializer/deserializer device. In a specific embodiment, the present invention provides a phase interpolator device that mixes phase-shifted clock signals according to a predetermined weight values at predetermined time intervals. There are other embodiments as well.Type: GrantFiled: November 4, 2016Date of Patent: November 13, 2018Assignee: INPHI CORPORATIONInventor: Irene Quek
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Patent number: 9866231Abstract: In an example, the present invention provides an analog to digital converter device for a high speed data transmission from 1 GS-s to 100 GS-s, although there can be other variations. In an example, the device has an input receiver device coupled to a transimpedance amplifier. In an example, the transimpedance amplifier is coupled to an input stream of data at 10 GHz to 100 GHz, or other variations.Type: GrantFiled: February 7, 2017Date of Patent: January 9, 2018Assignee: INPHI CORPORATIONInventors: Michael Le, James Gorecki, Jamal Riani, Jorge Pernillo, Amber Tan, Karthik Gopalakrishnan, Belal Helal, Chang-Feng Loi, Irene Quek, Guojun Ren
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Patent number: 9716480Abstract: This disclosure relates to the field of amplifiers for multi-level optical communication and more particularly to techniques for trans-impedance amplifiers (TIA) with gain control. The claimed embodiments address the problem of implementing a low cost TIA that exhibits high linearity, low noise, low power, and wide bandwidth. More specifically, some claims are directed to approaches for providing TIA gain control using a plurality of inverter-based replica gain control cells controlled by a feedback loop to manage the current into the amplifying output stage and thereby the TIA output voltage.Type: GrantFiled: September 19, 2016Date of Patent: July 25, 2017Assignee: INPHI CORPORATIONInventors: James Lawrence Gorecki, Irene Quek
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Publication number: 20170201267Abstract: In an example, the present invention provides an analog to digital converter device for a high speed data transmission from 1 GS-s to 100 GS-s, although there can be other variations. In an example, the device has an input receiver device coupled to a transimpedance amplifier. In an example, the transimpedance amplifier is coupled to an input stream of data at 10 GHz to 100 GHz, or other variations.Type: ApplicationFiled: February 7, 2017Publication date: July 13, 2017Inventors: Michael LE, James GORECKI, Jamal RIANI, Jorge PERNILLO, Amber TAN, Karthik GOPALAKRISHNAN, Belal HELAL, Chang-Feng LOI, Irene QUEK, Guojun REN
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Patent number: 9602116Abstract: In an example, the present invention provides an analog to digital converter device for a high speed data transmission from 1 GS-s to 100 GS-s, although there can be other variations. In an example, the device has an input receiver device coupled to a transimpedance amplifier. In an example, the transimpedance amplifier is coupled to an input stream of data at 10 GHz to 100 GHz, or other variations.Type: GrantFiled: January 7, 2016Date of Patent: March 21, 2017Assignee: INPHI CORPORATIONInventors: Michael Le, James Gorecki, Jamal Riani, Jorge Pernillo, Amber Tan, Karthik Gopalakrishnan, Belal Helal, Chang-Feng Loi, Irene Quek, Guojun Ren
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Publication number: 20170005633Abstract: This disclosure relates to the field of amplifiers for multi-level optical communication and more particularly to techniques for trans-impedance amplifiers (TIA) with gain control. The claimed embodiments address the problem of implementing a low cost TIA that exhibits high linearity, low noise, low power, and wide bandwidth. More specifically, some claims are directed to approaches for providing TIA gain control using a plurality of inverter-based replica gain control cells controlled by a feedback loop to manage the current into the amplifying output stage and thereby the TIA output voltage.Type: ApplicationFiled: September 19, 2016Publication date: January 5, 2017Inventors: James Lawrence GORECKI, Irene QUEK
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Patent number: 9473090Abstract: This disclosure relates to the field of amplifiers for multi-level optical communication and more particularly to techniques for trans-impedance amplifiers (TIA) with gain control. The claimed embodiments address the problem of implementing a low cost TIA that exhibits high linearity, low noise, low power, and wide bandwidth. More specifically, some claims are directed to approaches for providing TIA gain control using a plurality of inverter-based replica gain control cells controlled by a feedback loop to manage the current into the amplifying output stage and thereby the TIA output voltage.Type: GrantFiled: November 21, 2014Date of Patent: October 18, 2016Assignee: INPHI CORPORATIONInventors: James Lawrence Gorecki, Irene Quek
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Publication number: 20160149548Abstract: This disclosure relates to the field of amplifiers for multi-level optical communication and more particularly to techniques for trans-impedance amplifiers (TIA) with gain control. The claimed embodiments address the problem of implementing a low cost TIA that exhibits high linearity, low noise, low power, and wide bandwidth. More specifically, some claims are directed to approaches for providing TIA gain control using a plurality of inverter-based replica gain control cells controlled by a feedback loop to manage the current into the amplifying output stage and thereby the TIA output voltage.Type: ApplicationFiled: November 21, 2014Publication date: May 26, 2016Inventors: James Lawrence GORECKI, Irene QUEK
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Patent number: 7349454Abstract: A method of controlling a laser diode measures an average light output power of the laser diode and compares the average light output power to a desired average light output power within a target range. If the average light output power is not within the target range, the slope efficiency is determined by measuring two light output powers at two different bias conditions. Each of the two light output powers is greater than a selected minimum light output power, which insures that each measurement occurs within the slope efficiency portion of the laser diode curve. A new bias current for the laser diode is calculated based on the measured slope efficiency so as to produce a new average light output power within the target range.Type: GrantFiled: September 9, 2005Date of Patent: March 25, 2008Assignee: Avago Technologies Fiber IP Pte LtdInventors: Irene Quek, Siok Been Yeo, Khia Ho Chang, Seng Yee Chua
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Patent number: 7199666Abstract: In one embodiment, the linear gain region of a preamp is widened by performing the following actions within the preamp: converting a received input current to a first voltage; in accordance with one of a plurality of discrete gain states, amplifying the first voltage to produce a second voltage; in response to the received input current crossing one or more thresholds, switching the gain state used for amplifying the first voltage; and outputting an indication of the preamp's current gain state. Preamps for performing this and other methods are also disclosed.Type: GrantFiled: March 10, 2005Date of Patent: April 3, 2007Assignee: Avago Technologies Fiber IP (Singapore) Pte. Ltd.Inventors: Say Hyan Gan, Irene Quek, Ngee Ching Lim
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Publication number: 20070071046Abstract: A method of controlling a laser diode measures an average light output power of the laser diode and compares the average light output power to a desired average light output power within a target range. If the average light output power is not within the target range, the slope efficiency is determined by measuring two light output powers at two different bias conditions. Each of the two light output powers is greater than a selected minimum light output power, which insures that each measurement occurs within the slope efficiency portion of the laser diode curve. A new bias current for the laser diode is calculated based on the measured slope efficiency so as to produce a new average light output power within the target range.Type: ApplicationFiled: September 9, 2005Publication date: March 29, 2007Inventors: Irene Quek, Siok Yeo, Khia Chang, Seng Chua
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Patent number: 7154330Abstract: Stability compensation for an amplifier with adjustable gain is provided via adjustable capacitance coupled to an input of a gain element within the amplifier. Gain of the amplifier is adjusted by an adjustable resistance coupled between the input and output of the gain element. The adjustable capacitance and the adjustable resistance determine the frequency of a dominant pole of the amplifier.Type: GrantFiled: May 12, 2004Date of Patent: December 26, 2006Assignee: Avago Technologies Fiber IP (Singapore) Pte. Ltd.Inventor: Irene Quek
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Publication number: 20060202765Abstract: In one embodiment, the linear gain region of a preamp is widened by performing the following actions within the preamp: converting a received input current to a first voltage; in accordance with one of a plurality of discrete gain states, amplifying the first voltage to produce a second voltage; in response to the received input current crossing one or more thresholds, switching the gain state used for amplifying the first voltage; and outputting an indication of the preamp's current gain state. Preamps for performing this and other methods are also disclosed.Type: ApplicationFiled: March 10, 2005Publication date: September 14, 2006Inventors: Say Gan, Irene Quek, Ngee Lim
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Publication number: 20050253651Abstract: Stability compensation for an amplifier with adjustable gain is provided via adjustable capacitance coupled to an input of a gain element within the amplifier. Gain of the amplifier is adjusted by an adjustable resistance coupled between the input and output of the gain element. The adjustable capacitance and the adjustable resistance determine the frequency of a dominant pole of the amplifier.Type: ApplicationFiled: May 12, 2004Publication date: November 17, 2005Inventor: Irene Quek
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Patent number: 6906325Abstract: A photo-receiver arrangement includes a photo-sensor that captures light being incident thereon within a predetermined range of light intensity values. The photo-sensor also converts the captured incident light into a first electrical signal. A pre-scaler is connected to an output of the photo-sensor for producing a second scaled electrical signal based on and corresponding to said first electrical signal input into the pre-scaler; and a preamplifier is connected to an output of the pre-scaler for amplifying said second scaled electrical signal input into the preamplifier. The preamplifier has a dynamic range of at least substantially linear gain. The pre-scaler and the preamplifier are designed in a mutually matching configuration such that the second scaled electrical signal falls within the said dynamic range of the preamplifier for any light intensity value falling into said predetermined range of light intensity values.Type: GrantFiled: November 26, 2002Date of Patent: June 14, 2005Assignee: Agilent Technologies, Inc.Inventor: Irene Quek
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Publication number: 20030111604Abstract: A photo-receiver arrangement includes a photo-sensor that captures light being incident thereon within a predetermined range of light intensity values. The photo-sensor also converts the captured incident light into a first electrical signal. A pre-scaler is connected to an output of the photo-sensor for producing a second scaled electrical signal based on and corresponding to said first electrical signal input into the pre-scaler; and a preamplifier is connected to an output of the pre-scaler for amplifying said second scaled electrical signal input into the preamplifier. The preamplifier has a dynamic range of at least substantially linear gain. The pre-scaler and the preamplifier are designed in a mutually matching configuration such that the second scaled electrical signal falls within the said dynamic range of the preamplifier for any light intensity value falling into said predetermined range of light intensity values.Type: ApplicationFiled: November 26, 2002Publication date: June 19, 2003Inventor: Irene Quek