David Mervin Singer

US Patent:

6453355, Sep 17, 2002

Filed:

Aug 25, 1998

Appl. No.:

09/139378

Inventors:

Anne Jones - Redwood City CA
Jay Geagan - San Jose CA
Kevin L. Gong - Sunnyvale CA
Alagu Periyannan - San Francisco CA
David W. Singer - San Francisco CA

Assignee:

Apple Computer, Inc. - Cupertino CA

International Classification:

G06F 1516

US Classification:

709230, 709231, 345327, 370259

Abstract:

Methods and apparatuses for processing media data transmitted in a data communication medium. A digital processing system is provided with a time related sequence of media data provided to the digital processing system based on a set of data, wherein the set of data indicates a method to transmit the time related sequence of media data according to a transmission protocol. The set of data, itself, is a time related sequence of data associated with the time related sequence of media data. The time related sequence of media data may be presented and/or stored by the digital processing system.

US Patent:

6512778, Jan 28, 2003

Filed:

Aug 29, 2000

Appl. No.:

09/651009

Inventors:

Anne Jones - Redwood City CA
Jay Geagan - San Jose CA
Kevin L. Gong - Sunnyvale CA
Alagu Periyannan - Fremont CA
David W. Singer - San Francisco CA

Assignee:

Apple Computer, Inc. - Cupertino CA

International Classification:

H04J 316

US Classification:

370465, 370235, 370265, 370270, 3703956, 370487

Abstract:

Methods and apparatuses for processing media data for transmission in a data communication medium. A set of data indicates how to transmit a time related sequence of media data according to a transmission protocol. The set of data, includes a time related sequence of data which is associated with the time related sequence of media data. The set of data may be utilized by a digital processing system to transmit the time related sequence of media data (e. g. , by packets generated according to the transmission protocol and the set of data).

US Patent:

6714984, Mar 30, 2004

Filed:

Jun 21, 2002

Appl. No.:

10/177119

Inventors:

Anne Jones - Redwood City CA
Jay Geagan - San Jose CA
Kevin L. Gong - Sunnyvale CA
Alagu Periyannan - Fremont CA
David W. Singer - San Francisco CA

Assignee:

Apple Computer, Inc. - Cupertino CA

International Classification:

G06F 1516

US Classification:

709230, 709231, 345327, 370259

Abstract:

Methods and apparatuses for processing media data transmitted in a data communication medium. A digital processing system is provided with a time related sequence of media data provided to the digital processing system based on a set of data, wherein the set of data indicates a method to transmit the time related sequence of media data according to a transmission protocol. The set of data, itself, is a time related sequence of data associated with the time related sequence of media data. The time related sequence of media data may be presented and/or stored by the digital processing system.

US Patent:

6717952, Apr 6, 2004

Filed:

Nov 14, 2002

Appl. No.:

10/298039

Inventors:

Anne Jones - Redwood City CA
Jay Geagan - San Jose CA
Kevin L. Gong - Sunnyvale CA
Alagu Periyannan - Fremont CA
David W. Singer - San Francisco CA

Assignee:

Apple Computer, Inc. - Cupertino CA

International Classification:

H04J 316

US Classification:

370465, 370235, 370265, 370270, 37039552, 3703956, 370487, 709230

Abstract:

Methods and apparatuses for processing media data for transmission in a data communication medium. A set of data indicates how to transmit a time related sequence of media data according to a transmission protocol. The set of data, includes a time related sequence of data which is associated with the time related sequence of media data. The set of data may be utilized by a digital processing system to transmit the time related sequence of media data (e. g. , by packets generated according to the transmission protocol and the set of data).

US Patent:

6728315, Apr 27, 2004

Filed:

Dec 6, 2002

Appl. No.:

10/313773

Inventors:

Barin Geoffry Haskell - Mountain View CA
David William Singer - San Francisco CA
Adriana Dumitras - Sunnyvale CA
Atul Puri - Cupertino CA

Assignee:

Apple Computer, Inc. - Cupertino CA

International Classification:

H04N 712

US Classification:

37524016, 382236, 3484161

Abstract:

A method and apparatus for performing motion estimation in a digital video system is disclosed. Specifically, the present invention discloses a system that quickly calculates estimated motion vectors in a very efficient manner. In one embodiment, a first multiplicand is determined by multiplying a first display time difference between a first video picture and a second video picture by a power of two scale value. This step scales up a numerator for a ratio. Next, the system determines a scaled ratio by dividing that scaled numerator by a second first display time difference between said second video picture and a third video picture. The scaled ratio is then stored calculating motion vector estimations. By storing the scaled ratio, all the estimated motion vectors can be calculated quickly with good precision since the scaled ratio saves significant bits and reducing the scale is performed by simple shifts.

US Patent:

6744763, Jun 1, 2004

Filed:

Aug 25, 1998

Appl. No.:

09/139196

Inventors:

Anne Jones - Redwood City CA
Jay Geagan - San Jose CA
Kevin L. Gong - Sunnyvale CA
Alagu Periyannan - San Francisco CA
David W. Singer - San Francisco CA

Assignee:

Apple Computer, Inc. - Cupertino CA

International Classification:

H04J 316

US Classification:

370394, 370474, 370477, 345328, 709231

Abstract:

The present invention relates to information which allows transmission of time related data over a data communication medium. In one embodiment, a set of data includes at least one instruction to cause a digital processing system to generate a set of packets representing a time related sequence of media data. The set of packets is associated with a transmission protocol. The set of data includes a time related sequence of data which is associated with the time related sequence of media data.

US Patent:

6829648, Dec 7, 2004

Filed:

Dec 23, 1999

Appl. No.:

09/471652

Inventors:

Anne Jones - Redwood City CA
Jay Geagan - San Jose CA
Kevin L. Gong - Sunnyvale CA
Alagu Periyannan - San Francisco CA
David W. Singer - San Francisco CA

Assignee:

Apple Computer, Inc. - Cupertino CA

International Classification:

G06F 1516

US Classification:

709230, 709231, 370327, 345259

Abstract:

Methods and apparatuses for processing media data for transmission in a data communication medium. A set of data indicates how to transmit a time related sequence of media data according to a transmission protocol. The set of data, includes a time related sequence of data which is associated with the time related sequence of media data. The set of data may be utilized by a digital processing system to transmit the time related sequence of media data (e. g. , by packets generated according to the transmission protocol and the set of data).

US Patent:

7088776, Aug 8, 2006

Filed:

Nov 8, 2002

Appl. No.:

10/291320

Inventors:

Barin Geoffry Haskell - Mountain View CA, US
David William Singer - San Francisco CA, US
Adriana Dumitras - Sunnyvale CA, US
Atul Puri - Cupertino CA, US

Assignee:

Apple Computer, Inc. - Cupertino CA

International Classification:

H04B 1/66

US Classification:

37524023, 37524026, 37524024, 37524027, 37524016, 346109, 346112, 382246, 382235, 348699

Abstract:

A method and apparatus for variable accuracy inter-picture timing specification for digital video encoding is disclosed. Specifically, the present invention discloses a system that allows the relative timing of nearby video pictures to be encoded in a very efficient manner. In one embodiment, the display time difference between a current video picture and a nearby video picture is determined. The display time difference is then encoded into a digital representation of the video picture. In a preferred embodiment, the nearby video picture is the most recently transmitted stored picture. For coding efficiency, the display time difference may be encoded using a variable length coding system or arithmetic coding. In an alternate embodiment, the display time difference is encoded as a power of two to reduce the number of bits transmitted.