Patents by Inventor Andrew Xavier Estrada
Andrew Xavier Estrada 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: 8798692Abstract: A wireless headphone assembly has left and right speakers attached to ends of a headphone body, and at least two antennas, e.g., one located at each speaker. Since multiple antennas are used, reception can be improved using one of several approaches, e.g., simple selection of the “best” antenna, multiplexing antenna input, using diversity algorithms such as multiple input multiple output (MIMO) algorithms, etc.Type: GrantFiled: May 1, 2009Date of Patent: August 5, 2014Assignees: Sony Corporation, Sony Electronics Inc.Inventor: Andrew Xavier Estrada
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Patent number: 8423041Abstract: A game apparatus according to a preferred embodiment includes a first wireless communication module and a second wireless communication module. The first wireless communication module performs communication utilizing Bluetooth protocols, whereas the second wireless communication module performs communication utilizing IEEE protocols. The first radio communication module and the second radio module have a common reference communication cycle, and each communicates in communication cycles of an integral multiple of the reference communication cycle. A control unit sets offset time between the start time of a communication by the first wireless communication module until the start time of a communication by the second wireless communication module. In so doing, the control unit monitors the communication load of the first wireless communication module and sets the offset time based on a monitored result.Type: GrantFiled: March 23, 2012Date of Patent: April 16, 2013Assignees: Sony Computer Entertainment Inc., Sony Corporation, Sony Electronics Inc.Inventors: Itaru Maekawa, Andrew Xavier Estrada
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Publication number: 20120177024Abstract: A game apparatus according to a preferred embodiment includes a first wireless communication module and a second wireless communication module. The first wireless communication module performs communication utilizing Bluetooth protocols, whereas the second wireless communication module performs communication utilizing IEEE protocols. The first radio communication module and the second radio module have a common reference communication cycle, and each communicates in communication cycles of an integral multiple of the reference communication cycle. A control unit sets offset time between the start time of a communication by the first wireless communication module until the start time of a communication by the second wireless communication module. In so doing, the control unit monitors the communication load of the first wireless communication module and sets the offset time based on a monitored result.Type: ApplicationFiled: March 23, 2012Publication date: July 12, 2012Applicant: SONY COMPUTER ENTERTAINMENT INC.Inventors: Itaru Maekawa, Andrew Xavier Estrada
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Patent number: 8180363Abstract: A game apparatus according to a preferred embodiment includes a first wireless communication module and a second wireless communication module. The first wireless communication module performs communication utilizing Bluetooth protocols, whereas the second wireless communication module performs communication utilizing IEEE protocols. The first radio communication module and the second radio module have a common reference communication cycle, and each communicates in communication cycles of an integral multiple of the reference communication cycle. A control unit sets offset time between the start time of a communication by the first wireless communication module until the start time of a communication by the second wireless communication module. In so doing, the control unit monitors the communication load of the first wireless communication module and sets the offset time based on a monitored result.Type: GrantFiled: January 6, 2006Date of Patent: May 15, 2012Assignees: Sony Computer Entertainment Inc., Sony Corporation, Sony Electronics Inc.Inventors: Itaru Maekawa, Andrew Xavier Estrada
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Patent number: 8010056Abstract: A wireless headphone assembly has left and right speakers attached to ends of a headphone body, and at least two antennas, e.g., one located at each speaker. Reception can be improved by selecting a “best” one of the antennas based on a quality metric.Type: GrantFiled: April 1, 2009Date of Patent: August 30, 2011Assignees: Sony Corporation, Sony Electronics Inc.Inventors: Andrew Xavier Estrada, Shouichi Isogai
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Publication number: 20090208042Abstract: A wireless headphone assembly has left and right speakers attached to ends of a headphone body, and at least two antennas, e.g., one located at each speaker. Since multiple antennas are used, reception can be improved using one of several approaches, e.g., simple selection of the “best” antenna, multiplexing antenna input, using diversity algorithms such as multiple input multiple output (MIMO) algorithms, etc.Type: ApplicationFiled: May 1, 2009Publication date: August 20, 2009Inventor: Andrew Xavier ESTRADA
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Publication number: 20090185702Abstract: A wireless headphone assembly has left and right speakers attached to ends of a headphone body, and at least two antennas, e.g., one located at each speaker. Reception can be improved by selecting a “best” one of the antennas based on a quality metric.Type: ApplicationFiled: April 1, 2009Publication date: July 23, 2009Inventors: Andrew Xavier Estrada, Shouichi Isogai
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Patent number: 7561903Abstract: A wireless headphone assembly has left and right speakers attached to ends of a headphone body, and at least two antennas, e.g., one located at each speaker. Since multiple antennas are used, reception can be improved using one of several approaches, e.g., simple selection of the “best” antenna, multiplexing antenna input, using diversity algorithms such as multiple input multiple output (MIMO) algorithms, etc.Type: GrantFiled: February 21, 2006Date of Patent: July 14, 2009Assignees: Sony Corporation, Sony Electronics Inc.Inventor: Andrew Xavier Estrada
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Patent number: 7542520Abstract: A low complexity digital modulator, which is particularly useful for providing Gaussian frequency shift keying (GFSK) modulation, includes a filter, an integrator and a look-up table (LUT) stage. The filter is configured to receive a series of impulses and to generate a predetermined and fixed sequence of instantaneous frequency samples in response to each received impulse. The generated instantaneous frequency samples represent a predetermined type of filtering, such as Gaussian filtering, of the series of impulses. The integrator is configured to receive and integrate the instantaneous frequency samples to generate a sequence of phase samples. The LUT stage is configured to receive the phase samples and to generate sine and cosine samples of a complex baseband signal in response to each phase sample. The LUT stage stores only one quadrant of cosine samples and calculates the other cosine samples and all of the sine samples from the stored cosine samples.Type: GrantFiled: December 2, 1999Date of Patent: June 2, 2009Assignee: QUALCOMM IncorporatedInventor: Andrew Xavier Estrada
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Patent number: 7539517Abstract: A wireless headphone assembly has left and right speakers attached to ends of a headphone body, and at least two antennas, e.g., one located at each speaker. Reception can be improved by selecting a “best” one of the antennas based on a quality metric.Type: GrantFiled: April 17, 2006Date of Patent: May 26, 2009Assignees: Sony Corporation, Sony Electronics Inc.Inventors: Andrew Xavier Estrada, Shouichi Isogai
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Patent number: 6366622Abstract: An apparatus for receiving signals includes a low noise amplifier (LNA) configured to receive a radio frequency (RF) signal. An I/Q direct down converter is coupled to the LNA. The I/Q direct down converter is configured to split the RF signal into real and imaginary components and to down convert the real and imaginary components directly to baseband signals. A local oscillator (LO) is coupled to the I/Q direct down converter and is configured to drive the I/Q direct down converter. First and second filters are coupled to the I/Q direct down converter. The first and second filters are configured to filter the down converted real and imaginary components, respectively. First and second analog-to-digital converters (ADCs) are coupled to the first and second filters, respectively. The first and second ADCs are configured to convert the real and imaginary components into digital signals.Type: GrantFiled: May 4, 1999Date of Patent: April 2, 2002Assignee: Silicon Wave, Inc.Inventors: Stephen Joseph Brown, Andrew Xavier Estrada, Terrance R. Bourk, Steven R. Norsworthy, Patrick J. Murphy, Christopher Dennis Hull, Glenn Chang, Mark Vernon Lane, Jorge A. Grilo