JPS5641569A - Display system for remainder time of cassette tape - Google Patents

Display system for remainder time of cassette tape

Info

Publication number
JPS5641569A
JPS5641569A JP11555179A JP11555179A JPS5641569A JP S5641569 A JPS5641569 A JP S5641569A JP 11555179 A JP11555179 A JP 11555179A JP 11555179 A JP11555179 A JP 11555179A JP S5641569 A JPS5641569 A JP S5641569A
Authority
JP
Japan
Prior art keywords
take
tape
reels
supply
remainder time
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.)
Granted
Application number
JP11555179A
Other languages
Japanese (ja)
Other versions
JPS6053393B2 (en
Inventor
Kenichi Nagasawa
Eiji Takiguchi
Susumu Sato
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.)
Tamura Electric Works Ltd
Original Assignee
Tamura Electric Works 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 Tamura Electric Works Ltd filed Critical Tamura Electric Works Ltd
Priority to JP11555179A priority Critical patent/JPS6053393B2/en
Publication of JPS5641569A publication Critical patent/JPS5641569A/en
Publication of JPS6053393B2 publication Critical patent/JPS6053393B2/en
Expired legal-status Critical Current

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Abstract

PURPOSE: To display the remainder time accurately without reference to the kind, thickness, etc., of a tape by using the rotational speeds of both supply and take-up reels, the tape winding number of the take-up reel, and a fixed constant.
CONSTITUTION: Rotational speeds of bodies 9 and 12 of revolution of supply and take-up reels 1 and 2 are detected by rotation detectors 8 and 11 respectively and supplied to rotational-period detection parts 14 and 15, so that rotational frequencies of both the supply and take-up reels will be detected respectively. Counter part 16 at the take-up side serves as a tape counter and arithmetic part 17 receives the outputs of those detection part and counter part and also calculates tape remainder time t1 by using a previously stored constant according to expression (1). Rotational speeds Vs of those reels are found by expression (2). Further, An1 is a constant determined by the thickness and speed of the tape and previously calculated by measurement.
COPYRIGHT: (C)1981,JPO&Japio
JP11555179A 1979-09-08 1979-09-08 Cassette tape remaining time display method Expired JPS6053393B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11555179A JPS6053393B2 (en) 1979-09-08 1979-09-08 Cassette tape remaining time display method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11555179A JPS6053393B2 (en) 1979-09-08 1979-09-08 Cassette tape remaining time display method

Publications (2)

Publication Number Publication Date
JPS5641569A true JPS5641569A (en) 1981-04-18
JPS6053393B2 JPS6053393B2 (en) 1985-11-25

Family

ID=14665334

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11555179A Expired JPS6053393B2 (en) 1979-09-08 1979-09-08 Cassette tape remaining time display method

Country Status (1)

Country Link
JP (1) JPS6053393B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62289287A (en) * 1986-06-09 1987-12-16 Hisaka Works Ltd Method and apparatus for desalting sea water by utilizing solar heat

Also Published As

Publication number Publication date
JPS6053393B2 (en) 1985-11-25

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