JPS5690478A - Display circuit of tape recorder - Google Patents

Display circuit of tape recorder

Info

Publication number
JPS5690478A
JPS5690478A JP16617179A JP16617179A JPS5690478A JP S5690478 A JPS5690478 A JP S5690478A JP 16617179 A JP16617179 A JP 16617179A JP 16617179 A JP16617179 A JP 16617179A JP S5690478 A JPS5690478 A JP S5690478A
Authority
JP
Japan
Prior art keywords
time
tape
reel
revolving
stores
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
JP16617179A
Other languages
Japanese (ja)
Inventor
Tsutomu Kaneda
Koji Nagahama
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.)
Tokyo Sanyo Electric Co Ltd
Sanyo Electric Co Ltd
Original Assignee
Tokyo Sanyo Electric Co Ltd
Sanyo Electric 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 Tokyo Sanyo Electric Co Ltd, Sanyo Electric Co Ltd filed Critical Tokyo Sanyo Electric Co Ltd
Priority to JP16617179A priority Critical patent/JPS5690478A/en
Publication of JPS5690478A publication Critical patent/JPS5690478A/en
Pending legal-status Critical Current

Links

Landscapes

  • Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)

Abstract

PURPOSE: To calculate the residual time of a tape by running a tape for a short time at a constant speed, calculating and storing the revolving periods of a feed reel and a take-up reel at the respective times of that time and calculating and storing the tape thickness therefrom.
CONSTITUTION: A revolution number detecting means 5 calculates the feed reel revolving period at the time t0, the same period at t0+Δt and the period of a take- up reel based on the signals from a take-up reel revolution number detecting means 3, and a feed reel revolution number detecting means 4, and stores these in memories 7, 6, 8, respectively. A tape thickness calculating means 11 makes calculations by the instruction from a calculation instruction signal generating means 17, stores the value into a memory 12 and inverts switches 18W23 at the same instant. A measurement instruction signal generating means 16 stores the revolving periods of both reels at an arbitrary time in memories 9, 10. The actual residual time is calculated by a tape residual amount calculating means 13 and is displayed by a display device 14.
COPYRIGHT: (C)1981,JPO&Japio
JP16617179A 1979-12-19 1979-12-19 Display circuit of tape recorder Pending JPS5690478A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16617179A JPS5690478A (en) 1979-12-19 1979-12-19 Display circuit of tape recorder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16617179A JPS5690478A (en) 1979-12-19 1979-12-19 Display circuit of tape recorder

Publications (1)

Publication Number Publication Date
JPS5690478A true JPS5690478A (en) 1981-07-22

Family

ID=15826381

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16617179A Pending JPS5690478A (en) 1979-12-19 1979-12-19 Display circuit of tape recorder

Country Status (1)

Country Link
JP (1) JPS5690478A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61261888A (en) * 1985-05-16 1986-11-19 Sony Corp Recording and reproducing device
US4805053A (en) * 1986-04-07 1989-02-14 Sony Corporation Method and apparatus for detecting position of tape when recording or reproducing signals thereon

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61261888A (en) * 1985-05-16 1986-11-19 Sony Corp Recording and reproducing device
US4805053A (en) * 1986-04-07 1989-02-14 Sony Corporation Method and apparatus for detecting position of tape when recording or reproducing signals thereon

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