JPS5564647A - Tape speed alarm unit - Google Patents

Tape speed alarm unit

Info

Publication number
JPS5564647A
JPS5564647A JP13678478A JP13678478A JPS5564647A JP S5564647 A JPS5564647 A JP S5564647A JP 13678478 A JP13678478 A JP 13678478A JP 13678478 A JP13678478 A JP 13678478A JP S5564647 A JPS5564647 A JP S5564647A
Authority
JP
Japan
Prior art keywords
tape speed
tape
frequency
alarm unit
speed alarm
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
JP13678478A
Other languages
Japanese (ja)
Inventor
Masao Ishikura
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.)
Hitachi Denshi KK
Original Assignee
Hitachi Denshi KK
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 Hitachi Denshi KK filed Critical Hitachi Denshi KK
Priority to JP13678478A priority Critical patent/JPS5564647A/en
Publication of JPS5564647A publication Critical patent/JPS5564647A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To make it possible to give an alarm even in case of an abnormal tape speed due to the slipping of a video tape.
CONSTITUTION: Tape speed detection signal TSP of a frequency in proportion to a tape speed is extracted by timer woller 9 turning following a tape run and the frequency of this tape speed detection signal is compared 11 with a reference frequency equivalent to a normal tape speed to make decision 12, so that if the frequency error FS would exceed an allowable error, alarm 14 indicating an abnormal tape speed will be given.
COPYRIGHT: (C)1980,JPO&Japio
JP13678478A 1978-11-08 1978-11-08 Tape speed alarm unit Pending JPS5564647A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13678478A JPS5564647A (en) 1978-11-08 1978-11-08 Tape speed alarm unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13678478A JPS5564647A (en) 1978-11-08 1978-11-08 Tape speed alarm unit

Publications (1)

Publication Number Publication Date
JPS5564647A true JPS5564647A (en) 1980-05-15

Family

ID=15183430

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13678478A Pending JPS5564647A (en) 1978-11-08 1978-11-08 Tape speed alarm unit

Country Status (1)

Country Link
JP (1) JPS5564647A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5315452A (en) * 1991-04-29 1994-05-24 Samsung Electronics Co., Ltd. Apparatus and method for automatically adjusting recording speed of a recorder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5315452A (en) * 1991-04-29 1994-05-24 Samsung Electronics Co., Ltd. Apparatus and method for automatically adjusting recording speed of a recorder

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