Search

Henry Kannapell Phones & Addresses

  • 4277 Cherokee Rd, Gainesville, GA 30504 (770) 503-7944
  • 2168 Sufonet Dr, San Jose, CA 95124
  • Flowery Branch, GA
  • Cupertino, CA

Business Records

Name / Title
Company / Classification
Phones & Addresses
Henry Kannapell
Secretary
EDGE INNOVATIONS, INC
4277 Cherokee Trl, Gainesville, GA 30504

Publications

Us Patents

System For Processing And Recording Digital Color Television Signal Onto Analog Video Tape

View page
US Patent:
55088120, Apr 16, 1996
Filed:
Apr 1, 1994
Appl. No.:
8/222603
Inventors:
David K. Stevenson - San Francisco CA
Henry N. Kannapell - Gainesville GA
Lawrence F. Heyl - Mountain View CA
Assignee:
Apple Computer, Inc. - Cupertino CA
International Classification:
H04N 979
H04N 700
H04N 1100
US Classification:
358310
Abstract:
A system for processing and recording digitized component television signals onto analog video tape includes a digital color transformation matrix for generating a digital luminance signal, a first digital chrominance signal, and a second digital chrominance signal. The signals are then sample rate reduced, interleaved, and stored in a storage subsystem, which may include a disk array. The storage subsystem allows a constant rate, uninterrupted data stream to be produced. To record the signals onto video tape, the signal data is read from the storage subsystem and separated. A series of digital signal processing elements, coupled to the digital luminance signal (read from the storage subsystem), are used to generate a digital filtered and frequency modulated luminance signal. A second series of digital signal processing elements, coupled to the first and second digital chrominance signals (also read from the storage subsystem), are used to generate a digital low pass filtered and amplitude modulated composite chrominance signal. These signals are combined, then converted into an analog composite recording signal compatible with a predetermined VCR standard.

System For Inexpensive Phase Coherent Subcarrier Generation

View page
US Patent:
56214723, Apr 15, 1997
Filed:
Apr 1, 1994
Appl. No.:
8/222739
Inventors:
Henry N. Kannapell - Gainesville GA
Lawrence F. Heyl - Mountain View CA
Assignee:
Apple Computer, Inc. - Cupertino CA
International Classification:
H04N 945
H04N 9455
US Classification:
348505
Abstract:
The present invention is a system for inexpensive phase coherent subcarrier generation. The subcarrier sequence has a fairly short periodicity (two lines), allowing a relatively short lookup table to hold coded values precisely representing the sampled subcarrier. A variety of modulation techniques may be employed to minimize the error between the reconstructed subcarrier sine wave and an "ideal" subcarrier sine wave. The SCH phase may be easily varied by using a different table of subcarrier sine wave values.

System And Method For Synchronized Presentation Of Video And Audio Signals

View page
US Patent:
55702961, Oct 29, 1996
Filed:
Mar 30, 1994
Appl. No.:
8/219950
Inventors:
Lawrence F. Heyl - Mountain View CA
Henry N. Kannapell - Gainesville GA
Assignee:
Apple Computer, Inc. - Cupertino CA
International Classification:
H04L 500
US Classification:
364514R
Abstract:
A system and method for synchronized presentation of audio and video signals initially stored on a computer. A single composite file containing synchronized information characterizing the signals is generated. The data in the file is supplied as a stream to the input of a demultiplexer. Data characterizing each signal is output through one of a plurality of outputs of the demultiplexer, and supplied to one of a plurality of signal processors that generates the respective signal.
Henry N Kannapell from Gainesville, GA, age ~65 Get Report