RECEIVING DEVICE

PURPOSE:To execute focusing by means of simple electrical processing of a receiving signal, by sampling each receiving signal at the time when the inphase surface reaches each receiving element, holding it in a memory temporarily, and after that, adding each other. CONSTITUTION:Sampling clocks CL1-C...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	OGAWA TOSHIO, MIZUNO SUMINORI, UMEMURA SHINICHIROU, KATAKURA KAGEYOSHI, TAKABAYASHI YURIKO, KURODA MASAO
Format:	Patent
Sprache:	eng
Schlagworte:	ACOUSTICS ACOUSTICS NOT OTHERWISE PROVIDED FOR ANALOGOUS ARRANGEMENTS USING OTHER WAVES DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES DIAGNOSIS HUMAN NECESSITIES HYGIENE IDENTIFICATION INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING MEDICAL OR VETERINARY SCIENCE METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL MUSICAL INSTRUMENTS PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION SOUND-PRODUCING DEVICES SURGERY TESTING
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Beschreibung
Zusammenfassung:	PURPOSE:To execute focusing by means of simple electrical processing of a receiving signal, by sampling each receiving signal at the time when the inphase surface reaches each receiving element, holding it in a memory temporarily, and after that, adding each other. CONSTITUTION:Sampling clocks CL1-CLn for controlling a sampling time of a signal from each receiving element E1-En constituting an array-type receiver are generated by a clock generator CG operated in accordance with a value stored in a memory M0 in advance. Values sampled by sampling means SA1- SA2 are written in a memory M, and are added by an adder A after sample values of each receiving signal to be phased and added have been collected in the memory. In this way, a value being equivalent to a value which is obtained by virtually phasing and adding each receiving signal as it is, which has not been sampled, by some method, and sampling its signal is obtained as an output of the adder A.