Variable bandwith spread spectrum device and method
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 8, 1996
Issued Date -
N/A
app pub date -
Apr 17, 1995
filing date -
Jan 4, 1995
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A variable bandwidth filter device for use with a spread-spectrum transmitter including a chipping sequence generator, spread-spectrum processing means, an impulse generator, and a filter. The chipping-sequence generator generates a chipping sequence signal having a chipping-sequence-signal bandwidth. Using the chipping sequence signal, the spread-spectrum processing means processes a data signal to generate a spread-data signal having a spread bandwidth greater than the chipping-sequence-signal bandwidth. In response to each chip in the spread-data signal, the impulse generator generates an impulse signal. The filter filters the spectrum of each impulse signal with a bandpass equal to the spread bandwidth. The invention also comprises a method for generating a spread-spectrum signal using a chipping sequence having a rate less than the spread bandwidth. The method includes the steps of generating the chipping sequence, spread-spectrum processing a data signal with the chipping sequence, generating an impulse signal responsive to each chip, and filtering a spectrum of each impulse signal.
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