JPS558679A - Magnetic tape control system - Google Patents

Magnetic tape control system

Info

Publication number
JPS558679A
JPS558679A JP8230078A JP8230078A JPS558679A JP S558679 A JPS558679 A JP S558679A JP 8230078 A JP8230078 A JP 8230078A JP 8230078 A JP8230078 A JP 8230078A JP S558679 A JPS558679 A JP S558679A
Authority
JP
Japan
Prior art keywords
tape
bot
capstan
magnetic tape
information
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
JP8230078A
Other languages
Japanese (ja)
Other versions
JPS6123566B2 (en
Inventor
Tetsuo Isaka
Tetsuo Nagabori
Yukio Taniyama
Masaki Fujiki
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP8230078A priority Critical patent/JPS558679A/en
Publication of JPS558679A publication Critical patent/JPS558679A/en
Publication of JPS6123566B2 publication Critical patent/JPS6123566B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Digital Magnetic Recording (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

PURPOSE: To stop the generation of the residual part of old information when information is recorded on a magnetic tape, by moving temporarily the tape in the reverse direction after the detection of the tape start dependent upon a reflection marker and erasing preceding information while moving the tape in the forward direction.
CONSTITUTION: Magnetic tape 1 is provided with bigining of tape marker BOT such as an aluminum foil, and the defect to leave previously recorded data as it is cancelled by the following means in the part of the tape corresponding to length b of this BOT. photo sensor 3 detects the BOT at the leading edge and amplifies it in 9, and the amplified output is transferred to flip flop 10 to generate logical "1" at AND gate 8. OR gate 12 transfers a reverse-direction rotation signal to capstan control circuit 13. When command T3 is applied, flip flop 14 outputs a driving signal of capstan 7, and the capstan is caused to run in the reverse direction.
COPYRIGHT: (C)1980,JPO&Japio
JP8230078A 1978-07-06 1978-07-06 Magnetic tape control system Granted JPS558679A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8230078A JPS558679A (en) 1978-07-06 1978-07-06 Magnetic tape control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8230078A JPS558679A (en) 1978-07-06 1978-07-06 Magnetic tape control system

Publications (2)

Publication Number Publication Date
JPS558679A true JPS558679A (en) 1980-01-22
JPS6123566B2 JPS6123566B2 (en) 1986-06-06

Family

ID=13770693

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8230078A Granted JPS558679A (en) 1978-07-06 1978-07-06 Magnetic tape control system

Country Status (1)

Country Link
JP (1) JPS558679A (en)

Also Published As

Publication number Publication date
JPS6123566B2 (en) 1986-06-06

Similar Documents

Publication Publication Date Title
JPS558679A (en) Magnetic tape control system
JPS5637874A (en) Magnetic tape reproduction system
JPS5856341U (en) Unrecorded area detection device
GB1221899A (en) Film position and break detector
JPS5764342A (en) Optical system recorder and reproducer
JPS5715240A (en) Control system for rerecording in tape recorder or the like
JPS5417813A (en) Magnetic recorder-reproducer
JPS5528519A (en) Tape driving device
JPS56111144A (en) Program search system for tape recorder
JPS54135514A (en) Driving control unit of magnetic tape
JPS54122106A (en) Video signal recorder
JPS5639681A (en) Recording retrieval unit for picture information
JPS576465A (en) Medium processing device
JPS5322415A (en) Motor con trol device for camera able to record sound simultaneously
JPS5383712A (en) Tape recorder
JPS53100209A (en) Tape travel controller
JPS5548858A (en) Magnetic tape unit
JPS5437638A (en) Tape reader
JPS54118804A (en) Endless tape recorder control device
JPS5690450A (en) Recording and reproducing device
JPS5755549A (en) Recording system of magnetic tape device
JPS5339726A (en) Transfer system for magnetic tape
JPS5842532B2 (en) Magnetic tape control method
GB1284998A (en) Recording and/or playback apparatus
JPS52146204A (en) Magnetic tape recording position detector