JPS5694535A - Detector for tape winding diameter - Google Patents

Detector for tape winding diameter

Info

Publication number
JPS5694535A
JPS5694535A JP17117379A JP17117379A JPS5694535A JP S5694535 A JPS5694535 A JP S5694535A JP 17117379 A JP17117379 A JP 17117379A JP 17117379 A JP17117379 A JP 17117379A JP S5694535 A JPS5694535 A JP S5694535A
Authority
JP
Japan
Prior art keywords
pulse
synchronizing
tape
winding diameter
input
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP17117379A
Other languages
Japanese (ja)
Inventor
Haruo Suenaga
Hisayoshi Inoue
Kazuharu Shiragami
Yasushi Atsuta
Toshiyuki Takegahara
Toshihiko Kuman
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Japan Broadcasting Corp
Panasonic Holdings Corp
Original Assignee
Nippon Hoso Kyokai NHK
Japan Broadcasting Corp
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Hoso Kyokai NHK, Japan Broadcasting Corp, Matsushita Electric Industrial Co Ltd filed Critical Nippon Hoso Kyokai NHK
Priority to JP17117379A priority Critical patent/JPS5694535A/en
Publication of JPS5694535A publication Critical patent/JPS5694535A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To detect the tape winding diameter without being affected by temperature independently of tape speed, by producing pulses in synchronizing with the rotation of a tape reel and processing them digitally.
CONSTITUTION: A pulse P1 in synchronizing with a reel at one side is generated from the 1st pulse generator 11, and the pulse P2 in synchronizing with the pulse P1 is generated from the 2nd pulse generator 12, the pulse P5 in synchronizing with the rotating body 6 turned with this tape is generated from the pulse generator 19, the pulse P5 is taken as the clock input of the counter 17 and the pulse P4 is taken as the reset input, the output of the counter 17 is taken as the data input of the latch circuit 21, the pulse P3 is input as the control input to the latch circuit 21 to obtain the tape winding diameter information as the output of the latch circuit 21.
COPYRIGHT: (C)1981,JPO&Japio
JP17117379A 1979-12-28 1979-12-28 Detector for tape winding diameter Pending JPS5694535A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17117379A JPS5694535A (en) 1979-12-28 1979-12-28 Detector for tape winding diameter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17117379A JPS5694535A (en) 1979-12-28 1979-12-28 Detector for tape winding diameter

Publications (1)

Publication Number Publication Date
JPS5694535A true JPS5694535A (en) 1981-07-31

Family

ID=15918344

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17117379A Pending JPS5694535A (en) 1979-12-28 1979-12-28 Detector for tape winding diameter

Country Status (1)

Country Link
JP (1) JPS5694535A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5977690A (en) * 1982-10-25 1984-05-04 Toshiba Corp Device for measuring tape volume
JPS59217279A (en) * 1983-05-24 1984-12-07 Sony Magnescale Inc Meter for remaining amount of tape
JPS62101188U (en) * 1985-12-16 1987-06-27

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5262004A (en) * 1975-11-14 1977-05-23 Ibm Controller for feeding long material from reel to reel

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5262004A (en) * 1975-11-14 1977-05-23 Ibm Controller for feeding long material from reel to reel

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5977690A (en) * 1982-10-25 1984-05-04 Toshiba Corp Device for measuring tape volume
JPS59217279A (en) * 1983-05-24 1984-12-07 Sony Magnescale Inc Meter for remaining amount of tape
JPS62101188U (en) * 1985-12-16 1987-06-27

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