Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding
Patent
1986-11-12
1987-11-17
Kyle, Deborah L.
Communications, electrical: acoustic wave systems and devices
Echo systems
Distance or direction finding
367105, 73626, G01S 968
Patent
active
047078138
ABSTRACT:
An ultrasound apparatus permitting dynamic variation of the position of the reception focus of a prescribable number of ultrasound transducer elements has a reception channel including a time-delay circuit for the received ultrasound echo signal following every ultrasound transducer element. For switching between different, prescribed time-delay values (T.sub.1, T.sub.2, . . . T.sub.n), the time-delay circuit is connected to a control device. A part of the time-delay circuit is redundantly designed, so that first and a second sub-circuits for forming the time-delayed ultrasound echo signal are present. A dissolve circuit is provided which causes the second sub-circuit to be faded in the reception channel when the first sub-circuit, in a blanked condition, is switched to a different time-delay value (T.sub.1, T.sub.2, . . . T.sub.n), and vice versa, by a control device. Significant time is thus saved when switching between the different focus positions of the ultrasound apparatus. Transmission of switching clicks onto the respectively activated sub-circuit is prevented by the use of isolating amplifiers.
REFERENCES:
patent: 3435406 (1969-03-01), McCauley
patent: 3905009 (1975-09-01), Hughes et al.
patent: 4159462 (1979-06-01), Rocha et al.
patent: 4173007 (1979-10-01), McKeighen
patent: 4208916 (1980-06-01), Thomenius
patent: 4228686 (1980-10-01), Tancrell
patent: 4234940 (1980-11-01), Iinuma
patent: 4235111 (1980-11-01), Hassler
patent: 4253338 (1981-03-01), Iinuma et al.
patent: 4258575 (1981-03-01), Buchner
patent: 4305296 (1983-12-01), Green et al.
patent: 4331158 (1982-05-01), Partridge
patent: 4351038 (1982-09-01), Alais
patent: 4392379 (1983-07-01), Yamaguchi
Boheim Gustav
Hetzel Gert
Moeller Reiner
Saugeon Ulrich
Zurinski Viktor
Kyle Deborah L.
Siemens Aktiengesellschaft
Steinberger Brian S.
LandOfFree
Ultrasound apparatus permitting dynamic variation of the positio does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Ultrasound apparatus permitting dynamic variation of the positio, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ultrasound apparatus permitting dynamic variation of the positio will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1454459