Ultrasonic diagnostic apparatus
US5353797A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 8, 1993 |
| Grant date | Oct 11, 1994 |
| Priority date | — |
| Expiry date | Jul 8, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10K11/346
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An ultrasonic diagnostic apparatus including ultrasonic transducers. The ultrasonic diagnostic apparatus performs calculations for respective ultrasonic transducers to determine at which focal position a signal having just been received by the transducers is reflected in accordance with a lapse of time from a time when ultrasonic waves are transmitted. A delay time of respective received signals obtained from the transducers are determined in accordance with the results of the calculations. According to the present invention, control data which determines the delay time is stored in a first stored apparatus, compensation data which compensates the control data is stored in a second storage apparatus. The control data and compensation data read out respectively from these first and second storage apparatuses are added to one another, and the delay time for transmission and reception is determined according to the sum of the control data and compensation data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.