Apparatus for producing an image of an object scanned by ultrasonic wave beams
US4285011A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 23, 1979 |
| Grant date | Aug 18, 1981 |
| Priority date | — |
| Expiry date | Jan 23, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10K11/345
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Delay controllers are provided to delay pulses supplied to a plurality of electro-acoustic transducers. Each controller comprises a delay line provided with a plurality of taps and a switch for selectively changing the taps. There are further provided a measuring circuit for measuring amounts of delay time defined by the respective taps of the delay controllers; a CPU for controlling the operation of the measuring circuit and delay controllers. The CPU causes the measuring circuit to measure the amounts of delay time defined by the respective taps. Where the electro-acoustic transducers are electrically operated in accordance with the result of measurement, data for selecting any of the taps is stored in the RAM after proper compensation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.