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Xiaohua XieAliso Viejo, CA

Xiaohua Xie Phones & Addresses

Aliso Viejo, CA   

4052 Glenwood St, Irvine, CA 92604    949-7868218   

Lake Forest, CA   

Orange, CA   

Alhambra, CA   

Anaheim, CA   

18 Modesto, Irvine, CA 92602   

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Wireless

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Xiaohua Xie

Location:
Orange County, California Area
Industry:
Wireless

Publications

Us Patents

Method And System Which Uses Sound Wave Based Communication To Generate A Secure Wireless Link Between A Handset And Base Station

US Patent:
6507734, Jan 14, 2003
Filed:
Dec 18, 1998
Appl. No.:
09/216086
Inventors:
Doug M. Berger - Las Flores CA
Norman J. Beamish - Costa Mesa CA
Xiaohua “Joseph” Xie - Irvine CA
Assignee:
Skyworks Solutions, Inc. - Newport Beach CA
International Classification:
H04M 166
US Classification:
455410, 455 41, 455418, 455550, 379 561
Abstract:
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.

Method And System For Generating A Secure Wireless Link Between A Handset And Base Station

US Patent:
6754483, Jun 22, 2004
Filed:
Sep 4, 2002
Appl. No.:
10/235075
Inventors:
Norman Beamish - Costa Mesa CA
Virginia M. Chan - Fountain Valley CA
Xiaohua Xie - Irvine CA
Assignee:
Skyworks Solutions, Inc. - Irvine CA
International Classification:
H04Q 720
US Classification:
455410, 455463, 455435, 455418, 455419, 380270, 379 561, 379 563
Abstract:
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.

Method And System For Generating A Secure Wireless Link Between A Handset And Base Station

US Patent:
7013153, Mar 14, 2006
Filed:
Apr 28, 2004
Appl. No.:
10/834286
Inventors:
Norman Beamish - Costa Mesa CA,
Virginia M. Chan - Fountain Valley CA,
Xiaohua Joseph Xie - Irvine CA,
Assignee:
Skyworks Solutions, Inc. - Irvine CA
International Classification:
H04Q 7/20
US Classification:
455462, 4554261, 455410, 455465
Abstract:
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.

Method And System For Increasing Resolution And Accuracy Of An Analog To Digital Converter

US Patent:
7486213, Feb 3, 2009
Filed:
Mar 20, 2007
Appl. No.:
11/726125
Inventors:
Huili Yu - Mission Viejo CA,
Kunlun Zhu - Irvine CA,
Xiaohua Xie - Irvine CA,
Assignee:
Broadcom Corporation - Irvine CA
International Classification:
H03M 1/20
US Classification:
341131, 341143, 341155
Abstract:
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.

Method And System For Exchanging Data Between A Mobile Phone And A Pc

US Patent:
7650164, Jan 19, 2010
Filed:
Sep 12, 2005
Appl. No.:
11/224368
Inventors:
Chuong Nguyen - Garden Grove CA,
Xiaohua Xie - Irvine CA,
Travis Tran - Anaheim CA,
Assignee:
Broadcom Corporation - Irvine CA
International Classification:
H04M 1/00
US Classification:
4555562, 455 412, 4555561, 4554121
Abstract:
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.

Increased Resolution Analog To Digital Converter

US Patent:
7859440, Dec 28, 2010
Filed:
Dec 19, 2008
Appl. No.:
12/317203
Inventors:
Huili Yu - Mission Viejo CA,
Kunlun Zhu - Irvine CA,
Xiaohua Xie - Irvine CA,
Assignee:
Broadcom Corporation - Irvine CA
International Classification:
H03M 1/20
US Classification:
341131, 341143, 341155
Abstract:
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.

Method And System For Generating A Secure Wireless Link Between A Handset And Base Station

US Patent:
2002005, May 16, 2002
Filed:
Dec 18, 1998
Appl. No.:
09/216380
Inventors:
NORMAN BEAMISH - COSTA MESA CA,
VIRGINIA M. CHAN - FOUNTAIN VALLEY CA,
XIAOHUA ?quot;JOSEPH?quot; XIE - IRVINE CA,
International Classification:
H04M001/66
US Classification:
455/411000, 455/426000
Abstract:
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.

Hardware Test And Diagnosis System And Method

US Patent:
2009015, Jun 18, 2009
Filed:
Oct 15, 2008
Appl. No.:
12/288099
Inventors:
Tao Jiang - Hacienda Heights CA,
Xiaohua Xie - Irvine CA,
Assignee:
BROADCOM CORPORATION - IRVINE CA
International Classification:
G06F 15/00
US Classification:
702183, 702186
Abstract:
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.

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