Patents by Inventor Cong T. Nguyen
Cong T. Nguyen 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: 10048921Abstract: A multimedia device engaged in wireless transmission of content to a remote display may format graphical user interface content for the remote display. The device may also communicate with a human interface device such as a remote control. The remote control may send control information to the multimedia device to control the remote display.Type: GrantFiled: March 1, 2011Date of Patent: August 14, 2018Assignee: QUALCOMM IncorporatedInventors: Vijayalakshmi R. Raveendran, Yu A. Wang, Jae-Hee Choi, Cong T. Nguyen
-
Patent number: 9318801Abstract: A wireless device is described. The wireless device includes an antenna. The wireless device also includes a hybrid transformer. The wireless device further includes a frequency matching termination port. The frequency matching termination port provides impedance matching with the antenna at multiple frequencies. The frequency matching termination port may include multiple resistors, inductors and capacitors that can be switched in/out.Type: GrantFiled: March 14, 2013Date of Patent: April 19, 2016Assignee: QUALCOMM IncorporatedInventors: Bruce Judson, Cong T Nguyen, Peter D Heidmann, Joseph Patrick Burke, Vladimir Aparin
-
Patent number: 9252831Abstract: Exemplary embodiments are directed to systems, devices, and methods for mitigating effects of transmit signal leakage. A transceiver may include a transmitter and a receiver. The transceiver may further include a multi-tap analog adaptive filter coupled to each of the transmitter and the receiver and configured to generate an estimated transmit leakage signal based on at least a portion of a transmit signal from the transmitter and an error signal from the receiver.Type: GrantFiled: March 1, 2013Date of Patent: February 2, 2016Assignee: QUALCOMM IncorporatedInventors: Roberto Rimini, Cong T Nguyen, Peter D Heidmann, Joseph Patrick Burke, Vladimir Aparin
-
Publication number: 20140247757Abstract: Exemplary embodiments are directed to systems, devices, and methods for mitigating effects of transmit signal leakage. A transceiver may include a transmitter and a receiver. The transceiver may further include a multi-tap analog adaptive filter coupled to each of the transmitter and the receiver and configured to generate an estimated transmit leakage signal based on at least a portion of a transmit signal from the transmitter and an error signal from the receiver.Type: ApplicationFiled: March 1, 2013Publication date: September 4, 2014Applicant: QUALCOMM IncorporatedInventors: Roberto Rimini, Cong T. Nguyen, Peter D. Heidmann, Joseph Patrick Burke, Vladimir Aparin
-
Publication number: 20140170991Abstract: A method of performing interference cancellation in a communication device having a plurality of transceivers includes: detecting a co-existence issue between a first transceiver and a second transceiver of the plurality of transceivers; determining parameters of the co-existence issue; selecting the first transceiver for providing an input signal to an interference cancellation (IC) circuit; selecting the second transceiver for receiving an output signal from the IC circuit; configuring the IC circuit based on the parameters of the co-existence issue; and generating the output signal based on the input signal and the parameters to reduce interference caused by the first transceiver on the second transceiver.Type: ApplicationFiled: December 18, 2012Publication date: June 19, 2014Applicant: QUALCOMM IncorporatedInventors: Bongyong SONG, Samir Salib SOLIMAN, Cong T. NGUYEN
-
Patent number: 8693520Abstract: One feature provides a method for transmitting content to a receiving device, by establishing channel hopping sequence information with the receiving device via a first communication band. The channel hopping sequence information is associated with a plurality of traffic channels within a second communication band. Moreover, the method entails transmitting the content to the receiving device through the plurality of traffic channels via the second communication band using a channel hopping scheme implemented according to the channel hopping sequence information. In one embodiment, establishing the channel hopping sequence information with the receiving device via the first communication band further includes: obtaining a channel hopping sequence key; and transmitting the channel hopping sequence key to the receiving device within the first communication band.Type: GrantFiled: September 30, 2010Date of Patent: April 8, 2014Assignee: QUALCOMM IncorporatedInventors: Yong Jin Kim, Cong T. Nguyen, Babak Aryan, Vijayalakshmi R. Raveendran
-
Publication number: 20140073281Abstract: A preselect circuit maintains the dynamic range of a received RF input signal during bandpass filtering of the received RF input signal. The preselect circuit includes a Q-deficient passive bandpass filter for coupling to an antenna to receive a received RF input signal. The preselect circuit further includes a Q-enhancement circuit coupled to the Q-deficient passive bandpass filter, wherein the Q-enhancement circuit increases a Q-value of the Q-deficient passive bandpass filter by compensating for resistive inductive losses in the bandpass filter.Type: ApplicationFiled: November 12, 2013Publication date: March 13, 2014Applicant: QUALCOMM IncorporatedInventors: Bruce A. Judson, Cong T. Nguyen
-
Publication number: 20130335291Abstract: A wireless device is described. The wireless device includes an antenna. The wireless device also includes a hybrid transformer. The wireless device further includes a frequency matching termination port. The frequency matching termination port provides impedance matching with the antenna at multiple frequencies. The frequency matching termination port may include multiple resistors, inductors and capacitors that can be switched in/out.Type: ApplicationFiled: March 14, 2013Publication date: December 19, 2013Applicant: QUALCOMM INCORPORATEDInventors: Bruce Judson, Cong T Nguyen, Peter D. Heidmann, Joseph Patrick Burke, Vladimir Aparin
-
Patent number: 8606211Abstract: A preselect circuit maintains the dynamic range of a received RF input signal during bandpass filtering of the received RF input signal. The preselect circuit includes a Q-deficient passive bandpass filter for coupling to an antenna to receive a received RF input signal. The preselect circuit further includes a Q-enhancement circuit coupled to the Q-deficient passive bandpass filter, wherein the Q-enhancement circuit increases a Q-value of the Q-deficient passive bandpass filter by compensating for resistive inductive losses in the bandpass filter.Type: GrantFiled: June 23, 2009Date of Patent: December 10, 2013Assignee: QUALCOMM IncorporatedInventors: Bruce A. Judson, Cong T. Nguyen
-
Patent number: 8577377Abstract: Methods and apparatus for providing a wireless expansion network. In an aspect, an apparatus includes an expansion circuit configured to identify at least one of a selected uplink (UL) channel and a selected downlink (DL) channel that are provided by one of a primary network and an expansion network, and a processing circuit configured to switch to the at least one of the selected UL and DL channels. An apparatus includes means for obtaining link parameters associated with a primary network and an expansion network, means for identifying clients that are assigned transmission channels on both the primary network and the expansion network based on the link parameters, and means for transmitting messages to the clients to indicate the assigned transmission channels.Type: GrantFiled: January 22, 2009Date of Patent: November 5, 2013Assignee: QUALCOMM IncorporatedInventors: Stephen J. Shellhammer, Ahmed K. Sadek, Cong T. Nguyen
-
Patent number: 8538367Abstract: A filter circuit enhances a deficient Q-value in a filter stage and buffers the filter stage from subsequent filter stages using a common active device. A filter circuit includes a first buffered filtering stage including a first Q-deficient filter stage to receive an input signal and a first Q-enhancement buffer stage. The first Q-enhancement buffer stage is coupled to the first Q-deficient filter stage, wherein the first Q-enhancement buffer stage includes a single active device to increase a Q-value of the first Q-deficient filter stage and isolate the first Q-deficient filter stage from any subsequent filter stage. A filtering method includes filtering an input signal in a first Q-deficient filter stage and enhancing a deficient Q-value of the first Q-deficient filter stage with an active device. The method further includes buffering the first Q-deficient filter stage from any subsequent filter stage with the active device.Type: GrantFiled: June 29, 2009Date of Patent: September 17, 2013Assignee: QUALCOMM IncorporatedInventors: Bruce A. Judson, Cong T. Nguyen
-
Publication number: 20110219420Abstract: A multimedia device engaged in wireless transmission of content to a remote display may format graphical user interface content for the remote display. The device may also communicate with a human interface device such as a remote control. The remote control may send control information to the multimedia device to control the remote display.Type: ApplicationFiled: March 1, 2011Publication date: September 8, 2011Applicant: QUALCOMM IncorporatedInventors: Vijayalakshmi R. Raveendran, Yu A. Wang, Jae-Hee Choi, Cong T. Nguyen
-
Publication number: 20110080935Abstract: One feature provides a method for transmitting content to a receiving device, by establishing channel hopping sequence information with the receiving device via a first communication band. The channel hopping sequence information is associated with a plurality of traffic channels within a second communication band. Moreover, the method entails transmitting the content to the receiving device through the plurality of traffic channels via the second communication band using a channel hopping scheme implemented according to the channel hopping sequence information. In one embodiment, establishing the channel hopping sequence information with the receiving device via the first communication band further includes: obtaining a channel hopping sequence key; and transmitting the channel hopping sequence key to the receiving device within the first communication band.Type: ApplicationFiled: September 30, 2010Publication date: April 7, 2011Applicant: QUALCOMM IncorporatedInventors: Yong Jin Kim, Cong T. Nguyen, Babak Aryan, Vijayalakshmi R. Raveendran
-
Publication number: 20100330948Abstract: A filter circuit enhances a deficient Q-value in a filter stage and buffers the filter stage from subsequent filter stages using a common active device. A filter circuit includes a first buffered filtering stage including a first Q-deficient filter stage to receive an input signal and a first Q-enhancement buffer stage. The first Q-enhancement buffer stage is coupled to the first Q-deficient filter stage, wherein the first Q-enhancement buffer stage includes a single active device to increase a Q-value of the first Q-deficient filter stage and isolate the first Q-deficient filter stage from any subsequent filter stage. A filtering method includes filtering an input signal in a first Q-deficient filter stage and enhancing a deficient Q-value of the first Q-deficient filter stage with an active device. The method further includes buffering the first Q-deficient filter stage from any subsequent filter stage with the active device.Type: ApplicationFiled: June 29, 2009Publication date: December 30, 2010Applicant: QUALCOMM IncorporatedInventors: Bruce Judson, Cong T. Nguyen
-
Publication number: 20100323654Abstract: A preselect circuit maintains the dynamic range of a received RF input signal during bandpass filtering of the received RF input signal. The preselect circuit includes a Q-deficient passive bandpass filter for coupling to an antenna to receive a received RF input signal. The preselect circuit further includes a Q-enhancement circuit coupled to the Q-deficient passive bandpass filter, wherein the Q-enhancement circuit increases a Q-value of the Q-deficient passive bandpass filter by compensating for resistive inductive losses in the bandpass filter.Type: ApplicationFiled: June 23, 2009Publication date: December 23, 2010Applicant: QUALCOMM INCORPORATEDInventors: Bruce A. Judson, Cong T. Nguyen
-
Publication number: 20100184435Abstract: Methods and apparatus for providing a wireless expansion network. In an aspect, an apparatus includes an expansion circuit configured to identify at least one of a selected uplink (UL) channel and a selected downlink (DL) channel that are provided by one of a primary network and an expansion network, and a processing circuit configured to switch to the at least one of the selected UL and DL channels. An apparatus includes means for obtaining link parameters associated with a primary network and an expansion network, means for identifying clients that are assigned transmission channels on both the primary network and the expansion network based on the link parameters, and means for transmitting messages to the clients to indicate the assigned transmission channels.Type: ApplicationFiled: January 22, 2009Publication date: July 22, 2010Applicant: QUALCOMM IncorporatedInventors: Stephen J. Shellhammer, Ahmed K. Sadek, Cong T. Nguyen