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US RE30,416 EGranted
Automatic program locator for tape decks
AssigneeSharp Kabushiki Kaisha
InventorTatsuhiro Yasunaga
Life of this patent
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Abstract
The present disclosure relates to tape decks having a detection system responsive to a silence between recorded programs. A key board panel is provided for inputting a desired number to a down counter in order to position a head of a program after skipping a desired number of programs recorded on the tape at the fast movement speed. The count of the down counter is decremented once for every occurence of a detection signal from the detection system representative of the silence between recorded passages. The tape drive is stopped or returned to its normal playback speed when the contents of the down counter become zero.
Claims23
An automatic program locating system for tape reproduction systems comprising:
- a. a sensing head in physical contact with a tape when the tape reproduction system is in the fast forward or rewind drive mode;
- b. recorded passage detection circuit means connected to receive signals from the sensing head for generating a silence detection signal when the sensing head reaches a silence portion between recorded programs;
- c. down counter means which counts down one count in response to each occurence of a silence detection signal;
- d. key input means for introducing a desired number into the down counter,
- e. count output detection circuit means for generating a control signal when the down counter counts from said desired number down to zero;
- and
- f. shifting means for shifting the operational states of the tape reproduction system upon receiving the control signal.
4 more elements
An automatic program locating system for tape reproduction systems comprising:
- drive means for moving a tape with recorded material thereon through said reproduction system past a program reproduction head;
- detector means for sensing the presence or absence of recorded material on said tape, the presence of said recorded material being indicative of a program on said tape and the absence of said recorded material being indicative of a silence portion between programs, said detector means generating a detection signal for each silence portion of a predetermined length sensed as said tape passes through said reproduction system;
- and
- means for preselecting for reproduction from any given program position that the tape occupies in said reproduction system any specific program including programs which are not adjacent to the program at said given program position as a function of the number of detection signals generated by said detector means counted from said given program position.
1 more element
An automatic program locating system for tape reproduction systems comprising:
- drive means for moving the tape;
- control means for controlling the drive means to perform fast forward, fast rewind, or normal playback operation on the tape;
- a sensing head for sensing information recorded on a tape at least when the tape reproduction system is in the fast forward or rewind drive mode;
- recorded passage detection circuit means connected to receive signals from the sensing head for generating a silence detection signal when the sensing head reaches a silence portion between recorded programs;
- counter means which count in response to each occurrence of a silence detection signal;
- storage means for storing a desired digital coded number therein;
- key input means for introducing said desired number into said storage means;
- detection means for generating a control signal when said counter means counts an equal number of said silence detection signals to said desired digital coded number stored in said storage means;
- and
- shifting means for shifting the operational states of the tape reproduction system from said fast forward or fast rewind operation to said normal playback operation upon receiving the control signal.
7 more elements
An automatic program locating system for tape reproduction systems comprising:
- drive means for moving the tape;
- control means for controlling the drive means to perform a fast forward, fast rewind, or normal playback operation on the tape;
- a reproduction head arranged to sense, during said fast forward or fast rewind operation, information recorded on the tape;
- a detector coupled to the output of said reproduction head for producing a detection signal when a portion of tape exceeding a predetermined length on which no information is recorded is sensed;
- control signal producing means arranged to produce a control signal when a presettable number of said detection signals have been produced by said detector, said presettable number being equal to the number of detection signals which will be produced between any given program position that the tape occupies in said reproduction system and the program to be located, the control means being responsive to the control signal to discontinue said fast forward or fast rewind operation;
- and
- means for presetting said number to any selected one of a plurality of
- different values.
5 more elements
An automatic program locating system for tape reproduction systems comprising;
- a. a sensing head in physical contact with a tape when the tape reproduction system is in the fast forward or rewind drive mode;
- b. recorded passage detection circuit means connected to receive signals from the sensing head for generating a silence detection signal when the sensing head reaches a silence portion between recorded programs;
- c. counter means which counts one count in response to each occurrence of a silence detection signal;
- d. key input means for introducing a desired number into the counter means;
- e. count output detection circuit means for generating a control signal when the counter means counts said desired number;
- and
- f. shifting means for shifting the operational states of the tape reproduction system upon receiving the control signal.
4 more elements
An automatic program locating system for tape reproduction systems comprising;
- a sensing head in physical contact with a tape when the tape reproduction system is in a fast forward or rewind drive mode;
- recorded passage detection circuit means connected to receive signals from the sensing head for generating a silence detection signal when the sensing head reaches a silence portion between recorded programs;
- storage means the contents of which are progressively varied in response to occurrence of a silence detection signal;
- key input means for introducing a desired number into the storage means;
- detection circuit means for generating a control signal when the contents of the storage means are varied by said desired number;
- and
- shifting means for shifting the operational states of the tape reproduction system upon receiving said control signal.
4 more elements
An automatic program locating system for tape reproduction systems comprising:
- a sensing head for sensing information recorded on a tape at least when the tape reproduction system is in a fast forward or rewind mode;
- recorded passage detection circuit means connected to receive signals from the sensing head for generating a silence detection signal when the sensing head reaches a silence portion between recorded programs;
- counter means which count in response to each occurrence of a silence detection signal;
- semiconductor storage means for storing a desired digital coded number therein;
- a keyboard panel including numeral keys for introducing said desired number into said semiconductor storage means;
- converter means connected between said keyboard panel and said semiconductor storage means for converting an output signal from said keyboard panel into the digital coded number;
- detection means for generating a control signal when said counter means count an equal number of said silence detection signals to said desired number stored in said semiconductor storage means;
- and
- shifting means for shifting the operational states of the tape reproduction
- system upon receiving said control signal.
7 more elements
Dependencies are inferred from the claim text.