Spectrally efficient digital modulation method and apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 12, 1988
Grant Date -
N/A
app pub date -
Jan 28, 1987
filing date -
Jan 28, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method and apparatus are provided for generating a uniquely shaped prototype digital pulse which is transmitted with minimal frequency spectrum consumption and yet a relatively high bit rate. Such uniquely shaped digital pulse is stored in a memory included in a transmitter until transmission is desired, at which time a positive of the pulse is transmitted to correspond to a first logic level or the negative of the pulse is transmitted to correspond to a second logic level.
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