Patents by Inventor Ray (Ramon) GOMEZ
Ray (Ramon) GOMEZ 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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Patent number: 9363116Abstract: Embodiments provide an area, cost, and power efficient multi-service transceiver architecture. The multi-service transceiver architecture simplifies receiver/transmitter front ends needed for a multi-service architecture, by replacing significant portions of multiple receiver and/or transmitter front ends with a single ADC and/or DAC, respectively. In embodiments, a plurality of received service contents are combined into one composite analog/RF signal and applied to an ADC. The ADC converts the composite signal into a composite multi-service digital signal. Digital techniques are then used to separate the plurality of service contents into a plurality of respective digital streams that each can be independently demodulated. Similarly, in the transmit direction, a plurality of digital streams, including a plurality of service contents, are combined into one composite digital signal.Type: GrantFiled: May 21, 2014Date of Patent: June 7, 2016Assignee: Broadcom CorporationInventors: Ray (Ramon) Gomez, Len Dauphinee
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Patent number: 9118367Abstract: Embodiments provide transmitter topologies that improve the power efficiency and bandwidth of RF transmitters for high transmission power applications. In an embodiment, the common-emitter/source PA of conventional topologies is replaced with a current-input common-base/gate PA, which is stacked on top on an open-collector/drain current-output transmitter. The common-base/gate PA protects the output of the transmitter from large output voltage swings. The low input impedance of the common-base/gate PA makes the PA less susceptible to frequency roll-off, even in the presence of large parasitic capacitance produced by the transmitter. At the same time, the low input impedance of the common-base/gate PA reduces the voltage swing at the transmitter output and prevents the transmitter output from being compressed or modulated. In an embodiment, the DC output current of the transmitter is reused to bias the PA, which results in power savings compared to conventional transmitter topologies.Type: GrantFiled: March 22, 2013Date of Patent: August 25, 2015Assignee: Broadcom CorporationInventors: Ray (Ramon) Gomez, Leonard Dauphinee, Massimo Brandolini, Jianhong Xiao, Dongsoo Koh, Young Shin, Chonghua Zhong, Reza Rahman Khan
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Publication number: 20140341097Abstract: Embodiments provide an area, cost, and power efficient multi-service transceiver architecture. The multi-service transceiver architecture simplifies receiver/transmitter front ends needed for a multi-service architecture, by replacing significant portions of multiple receiver and/or transmitter front ends with a single ADC and/or DAC, respectively. In embodiments, a plurality of received service contents are combined into one composite analog/RF signal and applied to an ADC. The ADC converts the composite signal into a composite multi-service digital signal. Digital techniques are then used to separate the plurality of service contents into a plurality of respective digital streams that each can be independently demodulated. Similarly, in the transmit direction, a plurality of digital streams, including a plurality of service contents, are combined into one composite digital signal.Type: ApplicationFiled: May 21, 2014Publication date: November 20, 2014Applicant: Broadcom CorporationInventors: Ray (Ramon) GOMEZ, Len DAUPHINEE
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Patent number: 8803490Abstract: Embodiments of the present invention, as further described below, provide active termination circuits that can be used with power transmitter circuits. Embodiments reduce power loss due to impedance matching and increase power efficiency in power transmitter circuits. In particular, embodiments provide active termination circuits that can be configured to draw minimal amounts of the output current generated by the power transmitter circuits. At the same time, embodiments achieve optimal impedance matching, thus enabling optimal power transfer to the load. Further, embodiments can be controlled adaptively in real time to reduce parasitic effects on power transfer and to optimize impedance matching. Embodiments can be implemented using various transistor technologies (e.g., MOSFET, BJT, etc.), and can be used with a variety of power transmitter circuits, including, for example, power DACs, analog/digital RF transmitters, and analog/digital PAs.Type: GrantFiled: June 30, 2011Date of Patent: August 12, 2014Assignee: Broadcom CorporationInventor: Ray (Ramon) Gomez
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Patent number: 8792521Abstract: Embodiments provide an area, cost, and power efficient multi-service transceiver architecture. The multi-service transceiver architecture simplifies receiver/transmitter front ends needed for a multi-service architecture, by replacing significant portions of multiple receiver and/or transmitter front ends with a single ADC and/or DAC, respectively. In embodiments, a plurality of received service contents are combined into one composite analog/RF signal and applied to an ADC. The ADC converts the composite signal into a composite multi-service digital signal. Digital techniques are then used to separate the plurality of service contents into a plurality of respective digital streams that each can be independently demodulated. Similarly, in the transmit direction, a plurality of digital streams, including a plurality of service contents, are combined into one composite digital signal.Type: GrantFiled: September 23, 2011Date of Patent: July 29, 2014Assignee: Broadcom CorporationInventors: Ray (Ramon) Gomez, Len Dauphinee
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Publication number: 20130235953Abstract: Embodiments provide transmitter topologies that improve the power efficiency and bandwidth of RF transmitters for high transmission power applications. In an embodiment, the common-emitter/source PA of conventional topologies is replaced with a current-input common-base/gate PA, which is stacked on top on an open-collector/drain current-output transmitter. The common-base/gate PA protects the output of the transmitter from large output voltage swings. The low input impedance of the common-base/gate PA makes the PA less susceptible to frequency roll-off, even in the presence of large parasitic capacitance produced by the transmitter. At the same time, the low input impedance of the common-base/gate PA reduces the voltage swing at the transmitter output and prevents the transmitter output from being compressed or modulated, In an embodiment, the DC output current of the transmitter is reused to bias the PA, which results in power savings compared to conventional transmitter topologies.Type: ApplicationFiled: March 22, 2013Publication date: September 12, 2013Applicant: Broadcom CorporationInventors: Ray (Ramon) GOMEZ, Leonard Dauphinee, Massimo Brandolini, Jianhong Xiao, Dongsoo Koh, Young Shin, Chonghua Zhong, Reza Rahman Khan
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Patent number: 8417200Abstract: Embodiments provide transmitter topologies that improve the power efficiency and bandwidth of RF transmitters for high transmission power applications. In an embodiment, the common-emitter/source PA of conventional topologies is replaced with a current-input common-base/gate PA, which is stacked on top on an open-collector/drain current-output transmitter. The common-base/gate PA protects the output of the transmitter from large output voltage swings. The low input impedance of the common-base/gate PA makes the PA less susceptible to frequency roll-off, even in the presence of large parasitic capacitance produced by the transmitter. At the same time, the low input impedance of the common-base/gate PA reduces the voltage swing at the transmitter output and prevents the transmitter output from being compressed or modulated. In an embodiment, the DC output current of the transmitter is reused to bias the PA, which results in power savings compared to conventional transmitter topologies.Type: GrantFiled: September 30, 2011Date of Patent: April 9, 2013Assignee: Broadcom CorporationInventors: Ray (Ramon) Gomez, Leonard Dauphinee, Massimo Brandolini, Jianhong Xiao, Dongsoo Koh, Young Shin, Chonghua Zhong, Rezaur Rahman Khan
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Publication number: 20130084816Abstract: Embodiments provide transmitter topologies that improve the power efficiency and bandwidth of RF transmitters for high transmission power applications. In an embodiment, the common-emitter/source PA of conventional topologies is replaced with a current-input common-base/gate PA, which is stacked on top on an open-collector/drain current-output transmitter. The common-base/gate PA protects the output of the transmitter from large output voltage swings. The low input impedance of the common-base/gate PA makes the PA less susceptible to frequency roll-off, even in the presence of large parasitic capacitance produced by the transmitter. At the same time, the low input impedance of the common-base/gate PA reduces the voltage swing at the transmitter output and prevents the transmitter output from being compressed or modulated. In an embodiment, the DC output current of the transmitter is reused to bias the PA, which results in power savings compared to conventional transmitter topologies.Type: ApplicationFiled: September 30, 2011Publication date: April 4, 2013Applicant: Broadcom CorporationInventors: Ray (Ramon) Gomez, Leonard Dauphinee, Massimo Brandolini, Jianhong Xiao, Dongsoo Koh, Young Shin, Chonghua Zhong, Rezaur Rahman Khan
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Publication number: 20130085703Abstract: Embodiments provide histogram-based methods and system to estimate the transfer function of an ADC, and subsequently to linearize a non-linear ADC transfer function. Embodiments include blind algorithms that require no a priori knowledge of the input signal distribution. Embodiments can be implemented using cumulative (i.e., cumulative distribution function (CDF)) or non-cumulative (i.e., probability density function (PDF)) histograms. According to embodiments, a non-linear transfer function can be estimated by linearly approximating successive local intervals of the transfer function. Linearly approximated successive local intervals of the transfer function can then be used to fully characterize and closely estimate the transfer function.Type: ApplicationFiled: September 30, 2011Publication date: April 4, 2013Applicant: Broadcom CorporationInventors: Ray (Ramon) GOMEZ, Bruce J. Currivan, Lin He, Loke Tan, Frank Van der Goes, Cy (Chun-Ying) Chen, Jiangfeng Wu, Thomas Kolze
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Publication number: 20130077544Abstract: Embodiments provide an area, cost, and power efficient multi-service transceiver architecture. The multi-service transceiver architecture simplifies receiver/transmitter front ends needed for a multi-service architecture, by replacing significant portions of multiple receiver and/or transmitter front ends with a single ADC and/or DAC, respectively. In embodiments, a plurality of received service contents are combined into one composite analog/RF signal and applied to an ADC. The ADC converts the composite signal into a composite multi-service digital signal. Digital techniques are then used to separate the plurality of service contents into a plurality of respective digital streams that each can be independently demodulated. Similarly, in the transmit direction, a plurality of digital streams, including a plurality of service contents, are combined into one composite digital signal.Type: ApplicationFiled: September 23, 2011Publication date: March 28, 2013Applicant: Broadcom CorporationInventors: Ray (Ramon) GOMEZ, Len Dauphinee
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Publication number: 20130002225Abstract: Embodiments of the present invention, as further described below, provide active termination circuits that can be used with power transmitter circuits. Embodiments reduce power loss due to impedance matching and increase power efficiency in power transmitter circuits. In particular, embodiments provide active termination circuits that can be configured to draw minimal amounts of the output current generated by the power transmitter circuits. At the same time, embodiments achieve optimal impedance matching, thus enabling optimal power transfer to the load. Further, embodiments can be controlled adaptively in real time to reduce parasitic effects on power transfer and to optimize impedance matching. Embodiments can be implemented using various transistor technologies (e.g., MOSFET, BJT, etc.), and can be used with a variety of power transmitter circuits, including, for example, power DACs, analog/digital RF transmitters, and analog/digital PAs.Type: ApplicationFiled: June 30, 2011Publication date: January 3, 2013Applicant: Broadcom CorporationInventor: Ray (Ramon) GOMEZ