Reciprocating recording method and apparatus for controlling a video recorder so as to edit commercial messages from a recorded television signal
First Claim
1. An apparatus for controlling a video recorder to cause the deletion of interruptions in a program content of a television signal recorded onto a transported recording medium, wherein such interruptions are accompanied by a series of time spaced detectable transitions characterized by predetermined amplitude conditions of video and audio components of the television signal existing for a predetermined minimum time and including a first transition and at least a second transition, and wherein such recorder is responsive to control signals to selectively assume a record mode in which the recording medium is transported in a forward direction and a reverse mode in which the recording medium is transported in the reverse direction, said apparatus comprising:
- detection circuit means for receiving a television signal and detecting each of a series of said transitions;
control means responsive to said detection circuit means and adapted to transmit control signals to the recorder, said control means comprising first, second, third and fourth means;
said first means of said control means being responsive to said detection circuit means detecting a first transition of a series for memorizing the location at which such first transition is recorded onto the medium;
the second means of said control means being responsive to said detection circuit means detecting a second and each succeeding transition in a series when the recorder is in its record mode for producing in response to said second and each succeeding transition of the series a reverse command signal to cause the recorder to reverse the transported recording medium;
the third means of said control means cooperating with the first and second means for causing the recorder to transport the recording means proximate to the location where the first transition of the series is recorded; and
the fourth means of said control means being responsive to the operation of the third means for producing a record command signal when the recorder has transported the recording medium proximate to the location where the first transition of the series is recorded.
1 Assignment
0 Petitions
Accused Products
Abstract
In order to edit commercial messages from an off-the-air video recording of a television signal, method and apparatus are disclosed for automatically operating a video tape recorder (VTR) so that it alternates between a normal forward record mode, and a rewind or backscan mode in response to the detection of audio and video fade conditions in the television signal which occur at the beginning and end of each commercial message. A fade detection circuit receives the television signal, while it is being recorded on the VTR, and develops a control signal in response to each detected fade transition such that a single commercial interruption in the television program will be accompanied by a first and then a second fade transition control signal marking the beginning and end of the interruption. Two consecutive commercial messages are accompanied by a first, second, and then a final or third fade control signal. Cooperating with the fade detection circuit is a reciprocating editing control which receives the first fade control signal, memorizes the corresponding location on the tape, and then upon receiving the second fade control signal, stops the record mode of the VTR, reverses the tape to the memorized location of the first detected fade transition, and then restarts the recording operation at that tape location. Succeeding fade control signals cause a repeat of the foregoing reverse-forward sequence such that the later detected fade transition in a series, will position the tape for recording the resumption of the post-commercial program content of the television signal at approximately the same tape position where the recording of the precommercial program terminated, thereby resulting in a video tape recording of the program with commercial interruptions deleted.
215 Citations
10 Claims
-
1. An apparatus for controlling a video recorder to cause the deletion of interruptions in a program content of a television signal recorded onto a transported recording medium, wherein such interruptions are accompanied by a series of time spaced detectable transitions characterized by predetermined amplitude conditions of video and audio components of the television signal existing for a predetermined minimum time and including a first transition and at least a second transition, and wherein such recorder is responsive to control signals to selectively assume a record mode in which the recording medium is transported in a forward direction and a reverse mode in which the recording medium is transported in the reverse direction, said apparatus comprising:
-
detection circuit means for receiving a television signal and detecting each of a series of said transitions; control means responsive to said detection circuit means and adapted to transmit control signals to the recorder, said control means comprising first, second, third and fourth means; said first means of said control means being responsive to said detection circuit means detecting a first transition of a series for memorizing the location at which such first transition is recorded onto the medium; the second means of said control means being responsive to said detection circuit means detecting a second and each succeeding transition in a series when the recorder is in its record mode for producing in response to said second and each succeeding transition of the series a reverse command signal to cause the recorder to reverse the transported recording medium; the third means of said control means cooperating with the first and second means for causing the recorder to transport the recording means proximate to the location where the first transition of the series is recorded; and the fourth means of said control means being responsive to the operation of the third means for producing a record command signal when the recorder has transported the recording medium proximate to the location where the first transition of the series is recorded. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. An apparatus for controlling a video recorder to cause the deletion of interruptions in program content of a television signal recorded onto a transported recording medium, wherein such interruptions are accompanied by a series of time spaced detectable transitions characterized by a predetermined amplitude condition of the television signal that exists for a predetermined time, and which includes a first transition and at least a second transition, and wherein such recorder is responsive to control signals to selectively assume a record mode in which the recording medium is transported in a forward direction, a reverse mode in which the recording medium is transported in the reverse direction and a play mode in which the recording medium is transported in a forward direction, said apparatus comprising:
-
detection circuit means for receiving a television signal and detecting each of a series of said transitions; control means responsive to said detection circuit means and adapted to transmit control signals to the recorder, said control means comprising; a position memory means being responsive to said detection circuit means detecting a first transition of a series for memorizing the location at which such first transition is recorded onto the medium; reversing means being responsive to said detection circuit means detecting a second and each succeeding transition in a series when the recorder is in its record mode for producing in response to said second and each succeeding transition of the series a reverse command signal to cause the recorder to reverse the transported recording medium; reverse overshoot means cooperating with said position memory and reversing means for causing the recorder to transport the recording medium in the reverse direction to an overshoot position that precedes the medium location where the first transition of the series is recorded; playback command means for causing the recorder to assume the play mode following operation of the reverse overshoot means; and record mode command means responsive to playback of the recorded first transition for producing a record command signal when the recorder has transported the recording medium in the forward direction to the location where the first transition of the series has been previously recorded.
-
Specification