ARTHUR SPENCER PHELPS, MD
Dermatology in Los Angeles, CA
License number
California C35136
Category
Osteopathic Medicine
Type
Dermatology
Address
Address
200 Medical Plz #450, Los Angeles, CA 90095
Phone
(310) 825-0631
(310) 301-8708
(310) 301-8751 (Fax)
(310) 301-8708
(310) 301-8751 (Fax)
Personal information
See more information about ARTHUR SPENCER PHELPS at radaris.comName
Address
Phone
6545 Misty Creek Dr, Citrus Heights, CA 95621
27326 Blueridge Dr, Valencia, CA 91354
6914 Linda Sue Way, Fair Oaks, CA 95628
1577 Ganesha Pl, Pomona, CA 91768
27326 Blueridge Dr, Valencia, CA 91354
Professional information
Ntsc Color Television Transmission
US Patent:
4661840, Apr 28, 1987
Filed:
Mar 29, 1985
Appl. No.:
6/717862
Inventors:
Arthur C. Phelps - Hollywood CA
Assignee:
High Resolution Television, Inc. - Los Angeles CA
International Classification:
H04N 945
US Classification:
358 16
Abstract:
An improved color television transmission compatible with NTSC standards produces a controlled horizontal scan rate at about 15,734 Hz with 227. 5 cycles of color subcarrier per line, and a controlled vertical scan rate at about 59. 940 Hz to produce frames of two interlaced fields each at a rate of about 29. 970 Hz with 59,718. 5 cycles of the color subcarrier per field, instead of 59,718. 75, thereby eliminating "chroma crawl. " The vertical scan rate is controlled by dividing a clock frequency of four times the color subcarrier by four to produce the color subcarrier, and dividing the clock frequency by some set of multiples to produce the horizontal and vertical scan rates with 227. 5 cycles of color subcarrier per line and 59,718. 75 cycles per field, and once every field, at the end thereof, skipping one cycle of the clock frequency in the generation of the horizontal and field sync pulses for the next field, thereby causing each field to have 59. 718.