James T Determan

US Patent:

6714780, Mar 30, 2004

Filed:

Jun 12, 2001

Appl. No.:

09/722001

Inventors:

Franklin P. Antonio - Del Mar CA
Gene W. Marsh - Del Mar CA
Richard A. Stewart - San Diego CA
Marie M. Bjerede - West Linn OR
Ananthanarayanan Chockalingam - San Diego CA
Arthur S. Kerns - San Diego CA
Brian Butler - La Jolla CA
Matthew S. Grob - La Jolla CA
James T. Determan - Encinitas CA
Douglas Grover - San Diego CA
Leonard N. Schiff - San Diego CA
William G. Ames - Poway CA

Assignee:

Qualcomm Incorporated - San Diego CA

International Classification:

H04Q 720

US Classification:

455425, 455429, 455 121, 370331, 370332

Abstract:

A method for reducing call dropping rates in a multi-beam communication system. The multi-beam communication system includes a user terminal, a gateway, and a plurality of beam sources, where each beam source projects a plurality of beams, and where a communication link between the user terminal and the gateway is established on one or more beams. The method according to the present invention relies on a messaging protocol between the gateway and the user terminal. Based on messages sent from the user terminal to the gateway, preferably on a preselected periodic basis, the gateway can determine the more desirable beam(s) for transmitting data or information to the user terminal. The messages sent from the user terminal to the gateway contain values representing beam strengths as measured at the user terminal. The gateway uses the user terminal measured beam strengths to select the beams that should be used for transmitting data or information to the user terminal. The beams that should be used are the beams that if used will decrease the call dropping rates and provide a desired level of beam source diversity.

US Patent:

8077743, Dec 13, 2011

Filed:

Nov 17, 2004

Appl. No.:

10/991618

Inventors:

Peter Belding - San Diego CA, US
James T. Determan - Encinitas CA, US
Ronald Bloom - San Diego CA, US

Assignee:

QUALCOMM Incorporated - San Diego CA

International Classification:

H04J 3/00
H04J 3/24

US Classification:

370476, 370474

Abstract:

The disclosed embodiments provide methods and apparatus for offset interleaving of media frames for transmission over a communication network. In one aspect, a method for interleaving a stream of media frames for transmission over a communication network includes the acts of defining a plurality of packets and interleaving a stream of media frames among the packets.

US Patent:

20080127258, May 29, 2008

Filed:

Nov 15, 2007

Appl. No.:

11/941014

Inventors:

Gordon Kent Walker - Poway CA, US
Vijayalakshmi R. Raveendran - San Diego CA, US
Serafim S. Loukas - Carlsbad CA, US
Seyfullah Halit Oguz - San Diego CA, US
Fang Shi - San Diego CA, US
Sitaraman Ganapathy Subramania - San Diego CA, US
Phanikumar Bhamidipati - San Diego CA, US
James T. Determan - Encinitas CA, US

Assignee:

QUALCOMM INCORPORATED - San Diego CA

International Classification:

H04N 5/445

US Classification:

725 39

Abstract:

Techniques for video encoding and decoding a common guide media logic channel (MLC) to enable fast acquisition and re/synchronization of the video stream while preserving compression efficiency are provided. Systems and methods to process multimedia data using channel switch frames are presented. The system comprises an encoder operative to generate a common guide media logical channel (MLC) of a plurality of channel switch frames (CSFs), each respective active channel having one or more CSFs in the guide MLC. The decoder in the system is operative to decode a set of the plurality of CSFs from the guide MLC. The decoder simultaneously displays programming content of the decoded set of the plurality of CSFs on a display and automatically switches to a primary bitstream of an active channel associated with a selected one displayed CSF.

US Patent:

20110164176, Jul 7, 2011

Filed:

Jan 4, 2011

Appl. No.:

12/984032

Inventors:

Vijayalakshmi R. Raveendran - San Diego CA, US
PhaniKumar K. Bhamidipati - San Diego CA, US
James T. Determan - San Diego CA, US

Assignee:

QUALCOMM Incorporated - San Diego CA

International Classification:

H04N 5/38
H04N 7/04

US Classification:

348470, 348723, 348E05093, 348E0704

Abstract:

White space devices are operable to communicate information over white space and, more specifically, to quiet a transmitter to enable sensing signals in the white space. A method for inconspicuous quieting of a transmitter in a white space communication device modifies a transport stream for transmission by the transmitter of the white space device to provide a null window of time. The null window does not contain essential information. At least a portion of the modified transport stream is transmitted by the transmitter of the white space device. The transmitter is quieted during the null window, and white space sensing is performed during the null window.

US Patent:

20110164177, Jul 7, 2011

Filed:

Jan 4, 2011

Appl. No.:

12/984038

Inventors:

Vijayalakshmi R. Raveendran - San Diego CA, US
PhaniKumar K. Bhamidipati - San Diego CA, US
James T. Determan - San Diego CA, US

Assignee:

QUALCOMM Incorporated - San Diego CA

International Classification:

H04N 5/38
H04N 7/04

US Classification:

348470, 348723, 348E05093, 348E0704

Abstract:

Television white space devices are operable to communicate information over television white space and, more specifically, to quiet a transmitter for sensing signals in the television white space. A method for inconspicuous quieting of the transmitter in a television white space device inserts, from an application layer, information into a transport stream for transmission by the transmitter of the television white space device to produce a null window of time within the transport stream at a predetermined time. The method also transmits the transport stream by the transmitter of the television white space device and quiets the transmitter during the null window of time. The method senses, by a white space sensor of the television white space device, existing signals in the white space during the null window of time.

US Patent:

62088580, Mar 27, 2001

Filed:

Jul 21, 1998

Appl. No.:

9/120857

Inventors:

Franklin P. Antonio - Del Mar CA
Gene W. Marsh - Del Mar CA
Richard A. Stewart - San Diego CA
Marie M. Bjerede - West Linn OR
Ananthanarayanan Chockalingam - San Diego CA
Arthur S. Kerns - San Diego CA
Brian Butler - La Jolla CA
Matthew S. Grob - La Jolla CA
James T. Determan - Encinitas CA
Douglas Grover - San Diego CA
Leonard N. Schiff - San Diego CA
William G. Ames - Poway CA

Assignee:

Qualcomm Incorporated - San Diego CA

International Classification:

H04Q7/20

US Classification:

455429

Abstract:

A method for reducing call dropping rates in a multi-beam communication system. The multi-beam communication system includes a user terminal, a gateway, and a plurality of beam sources, where each beam source projects a plurality of beams, and where a communication link between the user terminal and the gateway is established on one or more beams. The method according to the present invention relies on a messaging protocol between the gateway and the user terminal. Based on messages sent from the user terminal to the gateway, preferably on a preselected periodic basis, the gateway can determine the more desirable beam(s) for transmitting data or information to the user terminal. The messages sent from the user terminal to the gateway contain values representing beam strengths as measured at the user terminal. The gateway uses the user terminal measured beam strengths to select the beams that should be used for transmitting data or information to the user terminal. The beams that should be used are the beams that if used will decrease the call dropping rates and provide a desired level of beam source diversity.

US Patent:

20170105153, Apr 13, 2017

Filed:

May 6, 2016

Appl. No.:

15/149008

Inventors:

- San Diego CA, US
Sumeeth NAGARAJA - San Diego CA, US
Dan VASSILOVSKI - Del Mar CA, US
Dan ZHANG - San Diego CA, US
James DETERMAN - Encinitas CA, US
Gene Wesley MARSH - Encinitas CA, US
Jun MA - San Diego CA, US

International Classification:

H04W 36/08
H04W 36/22
H04W 36/24
H04B 17/336

Abstract:

Methods and apparatuses for managing inter-satellite handovers are provided to allow a user terminal to reduce the frequency of handovers while maintaining a sufficiently high system capacity in a non-geosynchronous satellite communication system. The method and apparatus for managing inter-satellite handovers may be implemented in a gateway, in infrastructure connected to a gateway, in a user terminal, or in a satellite.

US Patent:

20160278063, Sep 22, 2016

Filed:

Sep 24, 2015

Appl. No.:

14/864758

Inventors:

- San Diego CA, US
Mehmet Izzet Gurelli - San Diego CA, US
Sumeeth Nagaraja - San Diego CA, US
Dan Vassilovski - Del Mar CA, US
James Taylor Determan - Encinitas CA, US
Gene Wesley Marsh - Encinitas CA, US
Qiang Wu - San Diego CA, US

International Classification:

H04W 72/04

Abstract:

A method and apparatus for a non-geosynchronous orbit (NGSO) satellite to comply with equivalent power flux density (EPFD) limits are disclosed. The example implementations may allow a constellation of NGSO satellites to comply with EPFD limits without disabling beams transmitted from the NGSO satellites. The power level of one or more beams to be transmitted from the NGSO satellites may be dynamically adjusted according to a beam power back-off schedule. In some aspects, the beam power back-off schedule may specify beam power back-off values as a function of latitude on Earth, and may allow for maximum allowable power levels for beams transmitted from the NGSO satellites without violating any of the EPFD percentile limits.