Xiaohua XieAliso Viejo, CA

6507734, Jan 14, 2003

Dec 18, 1998

09/216086

Doug M. Berger - Las Flores CA
Norman J. Beamish - Costa Mesa CA
Xiaohua “Joseph” Xie - Irvine CA

Skyworks Solutions, Inc. - Newport Beach CA

H04M 166

455410, 455 41, 455418, 455550, 379 561

Methods and apparatus for establishing secure wireless links between a handset and a base station in cordless telephone systems are described. A method of generating a secure wireless link between a handset and a base station includes initiating a linking procedure, generating a security code, trasmitting the security code from a sound transmitter, receiving the security code at a sound receiver and then establishing a radio frequency link between the handset and the base station utilizing the security code. A cordless telephone system capable of generating a secure wireless link includes both a handset and a base station. The handset includes a control circuit, an rf transmitter and an rf receiver coupled to the control circuit along with a sound receiver also coupled to the control circuit. The base station includes a control circuit, a code generation circuit coupled to the control circuit, a sound transmitter coupled to the control circuit for transmitting a code generated by the code generation circuit, and an rf transmitter and an rf receiver coupled to the control circuit.

6754483, Jun 22, 2004

Sep 4, 2002

10/235075

Norman Beamish - Costa Mesa CA
Virginia M. Chan - Fountain Valley CA
Xiaohua Xie - Irvine CA

Skyworks Solutions, Inc. - Irvine CA

H04Q 720

455410, 455463, 455435, 455418, 455419, 380270, 379 561, 379 563

Methods and apparatus for establishing secure wireless links between a handset and a base station in cordless telephone systems are described. A method of generating a secure wireless link between a handset and a base station includes initiating a linking procedure, generating a security code, displaying the security code at the base station, entering the security code into the handset and then establishing a radio frequency link between the handset and the base station utilizing the security code. A cordless telephone system capable of generating a secure wireless link includes both a handset and a base station. The handset includes a control circuit, a transmitter and a receiver coupled to the control circuit along with a keypad also coupled to the control circuit. The base station includes a control circuit, a code generation circuit coupled to the control circuit, a display coupled to the control circuit for displaying a code generated by the code generation circuit, and a transmitter and receiver coupled to the control circuit.

7013153, Mar 14, 2006

Apr 28, 2004

10/834286

Norman Beamish - Costa Mesa CA, US
Virginia M. Chan - Fountain Valley CA, US
Xiaohua Joseph Xie - Irvine CA, US

Skyworks Solutions, Inc. - Irvine CA

H04Q 7/20

455462, 4554261, 455410, 455465

Methods and apparatus for establishing secure wireless links between a handset and a base station in cordless telephone systems are described. A method of generating a secure wireless link between a handset and a base station includes initiating a linking procedure, generating a security code, displaying the security code at the base station, entering the security code into the handset and then establishing a radio frequency link between the handset and the base station utilizing the security code. A cordless telephone system capable of generating a secure wireless link includes both a handset and a base station. The handset includes a control circuit, a transmitter and a receiver coupled to the control circuit along with a keypad also coupled to the control circuit. The base station includes a control circuit, a code generation circuit coupled to the control circuit, a display coupled to the control circuit for displaying a code generated by the code generation circuit, and a transmitter and receiver coupled to the control circuit.

7486213, Feb 3, 2009

Mar 20, 2007

11/726125

Huili Yu - Mission Viejo CA, US
Kunlun Zhu - Irvine CA, US
Xiaohua Xie - Irvine CA, US

Broadcom Corporation - Irvine CA

H03M 1/20

341131, 341143, 341155

According to one embodiment, a method for increasing resolution and accuracy of an analog to digital converter receiving an input voltage includes dithering a number of digital output values from the analog to digital converter to generate a number of dithered values. The analog to digital converter can be an 8-bit analog to digital converter, for example. The dithered values are then averaged to generate an average dithered value. For example, the dithered values can be averaged using a moving average technique. The average dithered value is then scaled down to generate a scaled value. Thereafter, the scaled value is mapped to a, for example, 10-bit digital output having higher resolution and higher accuracy than the raw 8-bit output of the analog to digital converter. In this example, the resolution of the analog to digital converter is increased by a factor of four.

7650164, Jan 19, 2010

Sep 12, 2005

11/224368

Chuong Nguyen - Garden Grove CA, US
Xiaohua Xie - Irvine CA, US
Travis Tran - Anaheim CA, US

Broadcom Corporation - Irvine CA

H04M 1/00

4555562, 455 412, 4555561, 4554121

User information such as address books, calendars, images, ring tones, and the like may be exchanged between a mobile device such as, for example, a mobile phone and a personal computer, using an enhanced or extended version of an AT command set. Client code in the mobile device and application software on the personal computer permit a user to preserve and transfer copies of personal information via a short wired or wireless communication link, permitting the user to make use of such personal information when migrating to a new mobile device, thus avoiding manual re-entry of information, loss of stored images, and re-purchase of previously purchased and downloaded materials.

7859440, Dec 28, 2010

Dec 19, 2008

12/317203

Huili Yu - Mission Viejo CA, US
Kunlun Zhu - Irvine CA, US
Xiaohua Xie - Irvine CA, US

Broadcom Corporation - Irvine CA

H03M 1/20

341131, 341143, 341155

According to one embodiment, a method for increasing resolution and accuracy of an analog to digital converter receiving an input voltage includes dithering a number of digital output values from the analog to digital converter to generate a number of dithered values. The analog to digital converter can be an 8-bit analog to digital converter, for example. The dithered values are then averaged to generate an average dithered value. For example, the dithered values can be averaged using a moving average technique. The average dithered value is then scaled down to generate a scaled value. Thereafter, the scaled value is mapped to a, for example, 10-bit digital output having higher resolution and higher accuracy than the raw 8-bit output of the analog to digital converter. In this example, the resolution of the analog to digital converter is increased by a factor of four.

2002005, May 16, 2002

Dec 18, 1998

09/216380

NORMAN BEAMISH - COSTA MESA CA, US
VIRGINIA M. CHAN - FOUNTAIN VALLEY CA, US
XIAOHUA ?quot;JOSEPH?quot; XIE - IRVINE CA, US

H04M001/66

455/411000, 455/426000

Methods and apparatus for establishing secure wireless links between a handset and a base station in cordless telephone systems are described. A method of generating a secure wireless link between a handset and a base station includes initiating a linking procedure, generating a security code, displaying the security code at the base station, entering the security code into the handset and then establishing a radio frequency link between the handset and the base station utilizing the security code. A cordless telephone system capable of generating a secure wireless link includes both a handset and a base station. The handset includes a control circuit, a transmitter and a receiver coupled to the control circuit along with a keypad also coupled to the control circuit. The base station includes a control circuit, a code generation circuit coupled to the control circuit, a display coupled to the control circuit for displaying a code generated by the code generation circuit, and a transmitter and receiver coupled to the control circuit.

2009015, Jun 18, 2009

Oct 15, 2008

12/288099

Tao Jiang - Hacienda Heights CA, US
Xiaohua Xie - Irvine CA, US

BROADCOM CORPORATION - IRVINE CA

G06F 15/00

702183, 702186

There is provided a hardware test and diagnosis system comprising a diagnostic computer and a test device. The test device comprises a peripheral chipset and a baseband controller configured to execute an agent software. The agent software is configured to be coupled to the diagnostic computer, and the agent software is further configured to be coupled to the peripheral chipset of the test device. The agent software is further configured to provide a virtual channel between the diagnostic computer and the peripheral chipset. In one embodiment, the agent software comprises a driver configured for communication with the peripheral chipset, and is further configured to receive additional software from the diagnostic computer. In another embodiment, the agent software is further configured to be embedded in a boot code of the test device.