US 4633308
AMPLITUDE INSENSITIVE DELAY LINES IN AN ACCOUSTIC IMAGING SYSTEM
Assignee
HEWLETT-PACKARD COMPANY, PALO ALTO, CA A CORP OF CA
Filed
Jul 5, 1984
Granted
Dec 30, 1986
Location
LOS ALTOS HILLS CA US
Abstract
A delay circuit for providing signal delay within an acoustic imaging system is provided. Reflected acoustic signals are transformed into electrical signals and are used to reproduce images of objects. Delay lines along the electrical signal path are used to focus the images compensating for asynchronism of electrical signals caused by variations in the length of acoustic signal paths.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Nov 29, 1984
Rescinded
Feb 22, 1985
Duration
2 months
Inventor
- 1JOHN N. DUKES
Record Details
- Patent number
- US 4633308
- Application
- 06628063
- Aerospace match
- No
- Dataset source
- 35 USC §181 SO records
Browse by Assignee
HEWLETT-PACKARD COMPANY, PALO ALTO, CA A CORP OF CABack to patent indexSource: USPTO 35 USC §181 secrecy order records