Video tape recorder with the function of repetitive playback

• US 5,258,875 A
• Filed: 07/17/1991
• Issued: 11/02/1993
• Est. Priority Date: 07/20/1990
• Status: Expired due to Fees

• Current Assignee: Hashimoto Corporation
• Original Assignee: Hashimoto Corporation
• Inventors: Hashimoto, Kazuo
• Primary Examiner(s): GENSLER, PAUL L
• Application Number:
  US07/731,066
• Time in Patent Office: 839 Days
• Field of Search: 360/14.1, 360/15, 360/55, 360/60, 360/62, 360/69, 358/10, 358/335, 369/84
• US Class Current: 360/15
• CPC Class Codes: G09B 5/065 Combinations of audio and video presentations, e.g. videotapes, videodiscs, television systems
• CPC Class Codes: G11B 15/026 by using processor, e.g. microcomputer
• CPC Class Codes: G11B 15/03 by using counters
• CPC Class Codes: G11B 15/20 Moving record carrier backwards or forwards by finite amounts, i.e. backspacing, forward spacing
• CPC Class Codes: G11B 27/007 reproducing continuously a part of the information, i.e. repeating

Abstract

A video tape recorder with the function of repetitive playback mainly used for learning purposes detects whether a recordable tape or a playback only tape is used as a master tape when driving independently two video tapes with tape ends to be used as a slave tape and a master tape, respectively. When it is detected that a recordable tape is used, at first the two tapes are simultaneously driven in a recording condition by manipulating a record button and then a desired range of the slave tape is repeatedly rewound and replayed by pressing and releasing a playback button for a required time period. When it is detected that a playback only tape is used, on the other hand, only the slave tape is driven in a recording condition by a similar manipulation, and while the slave tape is repeatedly rewound and replayed, the master tape playback operation is suspended.

Claims

1. A video tape recorder having a repetitive playback function, comprising:

a video tape deck for a slave tape T-1;

a video tape deck for a master tape T-2;

operating means having at least two controls including a playback control and a record control;

means for simultaneously driving T-1 and T-2 in a recording condition in response to a pressing of said record control;

means for rewinding T-1 in a reviewing condition with T-2 being maintained in a recording condition in response to a pressing of said playback control; and

means for automatically playing back the rewound portion of T-1 immediately after said playback control is released.

2. A video tape recorder having a repetitive playback function as set forth in claim 1, further comprising means for automatically repeating said rewinding and playing back operation.

3. A video tape recorder having a repetitive playback function as set forth in claim 1, further comprising means for detecting which type of tape is housed in a video tape deck for T-2 among two types of tapes, wherein one type is for recording general TV programs and the other type is for playing back only,

wherein upon detection of a tape for recording general TV programs, both T-1 and T-2 simultaneously are driven in a recording condition immediately after turning on a power switch and pressing a record control, but upon detection of a tape for playing back only, T-1 is driven in a recording condition and T-2 in a playback condition immediately after turning on a power switch and pressing said record control.

4. A video tape recorder having a repetitive playback function as set forth in claim 3, wherein upon detection of said tape for playing back only, when a playback control is pressed while T-1 is driven in a recording condition and T-2 in a playback condition, T-1 is automatically and repeatedly played back, but driving of T-2 is suspended, and once a record control is pressed again after the completion of study of video on tape T-1, T-1 is driven in a recording condition and T-2 is a playback condition.