Methods and circuits using frequency shift keying modulation to transfer data over transmission lines simultaneous with television signals
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 13, 2001
Grant Date -
N/A
app pub date -
Jan 28, 1999
filing date -
Jan 28, 1999
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Data is transferred using frequency shift keying modulation in a frequency range that is not within a television signal frequency range used to conduct the television signal over the transmission line. Consequently, the present invention may allow the television signal and the data to be conducted on the same cabling. The frequency shift keying modulation is provided by generating a modulated data signal based on information included in the data. For example, the frequency shift keying modulation generates a modulated data signal at a first frequency when the data is equal to a logical 0 and at a second frequency when the data is equal to a logical 1.
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