Digital control system and a method of transmitting control data in such a system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 20, 1981
Grant Date -
N/A
app pub date -
Jun 9, 1978
filing date -
Jun 21, 1977
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
TV low cost remote control system using a microprocessor decoder. Control data is transmitted in digitally encoded form and comprises blocks of eight bits of data separated by gaps in transmission of equivalent length. Each data block consists of a start bit followed by seven bits of data for channel identification. Data is presented to the microprocessor on one input line which it samples regularly as a part of its main keyboard scan routine and in response to a start bit checks the data bits and gaps to determine presence of a valid command. The remote control information is decoded directly by the microprocessor. Using seven identification bits, a channel capacity of 128 channels is possible.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully