JPS5463810A - Tape locator for tape recorder - Google Patents

Tape locator for tape recorder

Info

Publication number
JPS5463810A
JPS5463810A JP12964477A JP12964477A JPS5463810A JP S5463810 A JPS5463810 A JP S5463810A JP 12964477 A JP12964477 A JP 12964477A JP 12964477 A JP12964477 A JP 12964477A JP S5463810 A JPS5463810 A JP S5463810A
Authority
JP
Japan
Prior art keywords
tape
pulses
counters
period
rotation
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
JP12964477A
Other languages
Japanese (ja)
Inventor
Tadao Fujita
Noriaki Naito
Kenkichi Umeda
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Priority to JP12964477A priority Critical patent/JPS5463810A/en
Publication of JPS5463810A publication Critical patent/JPS5463810A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To highly accurately locate a tape irrespective of the high and low speeds of the tape by counting the number of rotation detecting pulses, which are contained in two longer and shorter kinds of refrence pulse periods, thereby to locate the tape.
CONSTITUTION: Rotation detector 7 and 8 are arranged on reel drive shafts 5 and 6 so that one pulse A may be generated each one rotation of the shafts by means of detecting elements 9 and 10 and fed to counters 11 and 12, where count control pulses B having a pulse width of time T are generated. On the other hand, the reference pulses C are fed from a counter circuit 13 to the counters 11 and 12 to count the number of the pulses C which are contained in the time T. The circuit 13 feed the reference pulses of a shorter period t2 to the counters 11 and 12, when under its intial condition, but is made responsive to the frequency change-over signals from the counters 11 and 12 to convert them into the reference pulses of a longer period t1. The reel rotation period is detected with the reference pulses of the shorter period t2 at the higher speed and with the pulses of the longer period t1 at the lower speed so that the performances of the counters 11 and 12 and the counter circuit 13 may be obtained at their maximum levels at each speed, thus making it possible to highly accurately locate the tape at each speed.
COPYRIGHT: (C)1979,JPO&Japio
JP12964477A 1977-10-31 1977-10-31 Tape locator for tape recorder Pending JPS5463810A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12964477A JPS5463810A (en) 1977-10-31 1977-10-31 Tape locator for tape recorder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12964477A JPS5463810A (en) 1977-10-31 1977-10-31 Tape locator for tape recorder

Publications (1)

Publication Number Publication Date
JPS5463810A true JPS5463810A (en) 1979-05-23

Family

ID=15014601

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12964477A Pending JPS5463810A (en) 1977-10-31 1977-10-31 Tape locator for tape recorder

Country Status (1)

Country Link
JP (1) JPS5463810A (en)

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