CASCADED SHIFT REGISTER BEAMFORMER
Assignee
RAYTHEON COMPANY A CORP. OF DE
Filed
Jun 24, 1983
Granted
Jun 25, 1996
Location
NEWPORT RI US
Abstract
Charge coupled shift registers for sonar beamforming provide many channels of high resolution large delays by the cascading of two registers. Two equivalent embodiments are disclosed. In one embodiment the shift rate of the input shift register is an integer multiple "m" of the shift rate of the output shift register which is responsive to every m th signal presented to it. The other embodiment samples the signal in the input register by selected m th pulses of a pulse train whose frequency is m times the shift frequency of the output register. Each embodiment preserves the higher resolution phase information and incremental delay of the higher frequency sampling of the input shift register. The long time delay is provided by the output shift register operating at the lower shift rate.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Nov 22, 1983
Rescinded
Feb 1, 1995
Duration
11 years, 2 months
Inventor
- 1ELLIOT L. BLOOM
Record Details
- Patent number
- US 5530681
- Application
- 06507408
- Aerospace match
- Yes
- Dataset source
- 35 USC §181 SO records
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