JPH0215111U

JPH0215111U -

Info

Publication number: JPH0215111U
Application number: JP9268488U
Authority: JP
Priority date: 1988-07-13
Filing date: 1988-07-13
Publication date: 1990-01-30
Anticipated expiration: 2003-07-13
Also published as: JPH069621Y2

Description

[Brief explanation of the drawing]

第１図はこの考案の全体構成を示すブロツク図
、第２図はこの考案の一実施例を示すブロツク図
、第３図は雑音を含んだＳＴＣ信号の量子化を示
す説明図、第４図はこの考案の一例を示すフロー
チヤートである。図において、１はＳＴＣ調整器、２はマルチプ
レクサ、３はＡ／Ｄ回路、４はマイクロコンピユ
ータ、５は入出力回路、６は中央演算装置、７は
ＲＯＭ、８はＳＴＣパターン記憶器、９はクロツ
ク発振器、１０はＳＴＣ回路、１１は受信機、１
８は検出手段、１９は第１判別手段、２０は第２
判別手段、２１―１，２１―２は比較手段、２２
―１，２２―２は設定器、２３―１，２３―２は
計数手段、２４―１，２４―２は頻度設定器、２
５―１，２５―２は判定手段、２６は制御手段で
ある。なお、各図中同一符号は同一または相当部
分を示す。 Fig. 1 is a block diagram showing the overall configuration of this invention, Fig. 2 is a block diagram showing an embodiment of this invention, Fig. 3 is an explanatory diagram showing quantization of an STC signal containing noise, and Fig. 4. is a flowchart showing an example of this idea. In the figure, 1 is an STC regulator, 2 is a multiplexer, 3 is an A/D circuit, 4 is a microcomputer, 5 is an input/output circuit, 6 is a central processing unit, 7 is a ROM, 8 is an STC pattern memory, and 9 is a Clock oscillator, 10 is STC circuit, 11 is receiver, 1
8 is a detection means, 19 is a first discrimination means, 20 is a second
Discrimination means, 21-1, 21-2 are comparison means, 22
-1, 22-2 are setting devices, 23-1, 23-2 are counting means, 24-1, 24-2 are frequency setting devices, 2
5-1 and 25-2 are determining means, and 26 is a control means. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims

[Claims for Utility Model Registration] The inside of the subject is divided in the ultrasound propagation direction, the STC adjusters provided individually for each divided section are sequentially selected, and the gain of the receiver is adjusted based on the STC data of the section. In the STC signal generator to be controlled, selection is made from an STC pattern memory in which STC data from the STC regulator is stored for each section, and the STC regulator output and the STC pattern memory selected according to the timing of ultrasonic emission. a detection means for comparing the detected STC data and detecting the deviation; a comparison means for comparing the amount of deviation from the detection means with a threshold value of a unit signal level; A counting means for counting; a determining means for outputting a signal when the cumulative value by the counting means exceeds a predetermined value;
An STC signal generator comprising: control means for instructing update of STC data stored in a TC pattern storage device.