APPARATUS AND METHOD FOR FREQUENCY MODULATION
Assignee
Filed
Jan 18, 1985
Granted
May 2, 2000
Location
CHELMSFORD MA US
Abstract
A method and apparatus for frequency modulating a continuous wave signal is shown to comprise a voltage-controlled oscillator (VCO) having a first and a second control loop to maintain the carrier frequency of such VCO at a frequency determined by a crystal-controlled oscillator and to maintain the peak deviation of the FM modulation on such carrier frequency at a value equal to the deviation of the first Bessel null from the carrier frequency.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
May 15, 1986
Rescinded
Aug 10, 1999
Duration
13 years, 3 months
Inventor
- 1RICHARD W. BURRIER
Record Details
- Patent number
- US 6057798
- Application
- 06719021
- Aerospace match
- Yes
- Dataset source
- 35 USC §181 SO records
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