Christopher J Mills

US Patent:

20070189390, Aug 16, 2007

Filed:

Dec 8, 2006

Appl. No.:

11/636104

Inventors:

Derek Pappas - Palo Alto CA, US
Atul Garg - Sunnyvale CA, US
Shankar Moni - Bangalore, IN
Harikrishna M. Reddy - San Jose CA, US
Matthew R. Longnecker - Sunnyvale CA, US
Christopher L. Mills - Saratoga CA, US
Ignatius B. Tjandrasuwita - Atherton CA, US

International Classification:

H04N 11/02
H04N 11/04

US Classification:

37524016, 37524024

Abstract:

Described are methods and systems for processing data. A motion estimator uses a block of an input frame of video data and a block of a reference frame of video data to generate motion vectors according to a first encoding scheme. A motion compensator produces half pel motion vectors from the motion vectors according to a second encoding scheme that is different from the first encoding scheme.

US Patent:

20090157963, Jun 18, 2009

Filed:

Dec 17, 2007

Appl. No.:

12/002641

Inventors:

Michael J.M. Toksvig - Palo Alto CA, US
Justin Michael Mahan - Fremont CA, US
Christopher L. Mills - Saratoga CA, US

International Classification:

G06F 12/16
G06F 12/00
G06F 12/08

US Classification:

711118, 711161, 711211, 711E12001, 711E12103, 711E12017

Abstract:

Data for data elements (e.g., pixels) can be stored in an addressable storage unit that can store a number of bits that is not a whole number multiple of the number of bits of data per data element. Similarly, a number of the data elements can be transferred per unit of time over a bus, where the width of the bus is not a whole number multiple of the number of bits of data per data element. Data for none of the data elements is stored in more than one of the storage units or transferred in more than one unit of time. Also, data for multiple data elements is packaged contiguously in the storage unit or across the width of the bus.

US Patent:

20130329066, Dec 12, 2013

Filed:

Aug 15, 2012

Appl. No.:

13/586031

Inventors:

Jianping Zhou - Fremont CA, US
Christopher L. Mills - Saratoga CA, US

Assignee:

APPLE INC. - Cupertino CA

International Classification:

G09G 5/36
H04N 5/225

US Classification:

34820899, 345547, 348E05024

Abstract:

The video stabilization method can generate output data for an output frame from input data of an input frame according to a perspective transform of a transform matrix. The input data used for the perspective transform can be obtained from a buffer of a predetermined depth. The transform matrix can be altered when the input data required for the transform exceeds the depth of the buffer.

US Patent:

57908427, Aug 4, 1998

Filed:

Oct 11, 1996

Appl. No.:

8/728678

Inventors:

Gordon A. Charles - Palo Alto CA
Christopher Mills - Santa Clara CA

Assignee:

Divicom, Inc. - Milpitas CA

International Classification:

G06F 104

US Classification:

395559

Abstract:

A method and apparatus for use in a set top box processing system to permit simultaneous utilization of two system clocks in applications in which certain processing system elements utilize one system clock operating at a non-integer multiple of another system clock used by other processing system elements. A synchronous phase detector is used to generate a clock enable signal suitable for use in a pipeline structure to facilitate data transfer between the different elements of the processing system. The clock enable signal includes phase information extracted from the first and second clock signals, and is suitable for use in driving one or more multiplexers in a pipeline structure or other state-based logic device to thereby allow data transfer between an element of the processing system operating at the first clock rate and an element operating at the second clock rate.

US Patent:

59266473, Jul 20, 1999

Filed:

Oct 11, 1996

Appl. No.:

8/729547

Inventors:

Christopher Adams - Palo Alto CA
Gordon A. Charles - Palo Alto CA
Christopher Mills - Santa Clara CA

Assignee:

Divicom Inc. - Milpiitas CA

International Classification:

G09G 128
G09G 506
G06F 1204

US Classification:

39580036

Abstract:

A method and apparatus for dynamic alteration of a color look-up table (CLUT) pallet identifier in response to one or more key codes placed in an input data stream. An input data stream including a sequence of input data blocks is converted into a stream suitable for addressing a look-up table. The look-up table may be a 256. times. 16 table which requires an 8-bit address to identify a particular table entry. The invention allows such a table to be addressed using 4-bit data blocks in the input data stream. For each received 4-bit data block in the input data stream, a determination is made as to whether that block corresponds to a predetermined key value. If a given input block does not correspond to the predetermined key value, the 4-bit input block is combined with a previously-stored 4-bit pallet identifier to generate an 8-bit address into the look-up table. The pallet identifier specifies one of 16 different 16-entry pallets within the 256. times. 16 look-up table.

US Patent:

55306616, Jun 25, 1996

Filed:

Oct 5, 1994

Appl. No.:

8/318461

Inventors:

Olivier Garbe - San Mateo CA
Christopher Mills - Santa Clara CA

Assignee:

Winnov - Sunnyvale CA

International Classification:

G06F 1710

US Classification:

36472801

Abstract:

A computer architecture that can rapidly perform a variety of repetitive mathematical operations on multimedia data sets comprises a data processing engine having n data processing devices, each of which includes shift registers and multiplexers for organizing input data into bit slices such that each of the n data processing devices can receive one bit of information from n data samples. Look-up operations are performed in a table memory of each of the n data processing devices on a bit slice, the table memory containing all possible combinations of a constant function. The results of the look-ups are shifted and accumulated to simultaneously generate multiple outputs of a convolution of an input function with the constant function. A data path provides information transfer between each of the n data processing devices.