US 6,275,646 B1 · Image recording/reproducing apparatus

Abstract

A video recording/reproducing apparatus capable of discriminating commercial message portions even when a broadcasting mode is the same. A magnetic head records television broadcasting signals to a magnetic tape and reproduces the television broadcasting signals from this magnetic tape. When the television broadcasting signals are reduced by recording/reproducing apparatus, an audio-free portion detector detects audio-free portions from audio signals in the television broadcasting signals. Commercial message (CM) portion detector detects the commercial message portions in the television broadcasting signals by the time intervals among a plurality of audio-free portions detected by the audio-free portion detector, and a CM information memory circuit stores the information of the recording positions of the commercial message portions detected by this commercial message portion detector to the magnetic tape. When the television broadcasting signals are reproduced from the magnetic tape, reproduction is carried out while the commercial message portions are skipped, at the recording positions of the commercial message portions to the magnetic tape, on the basis of the information of the recording positions of the commercial message portions to the magnetic tape that are stored in the memory circuit.

Claims21

Dependent claims

Apparatus for recording/reproducing program material including audio and video signals on a tape recording medium, said apparatus comprising:

a control pulse read/write unit which writes a pulse signal at a constant preset interval on a control track along a longitudinal direction of the tape recording medium, and reads recorded pulse signals from said control track;
a recording/reproducing device coupled to receive said program material and to record and reproduce said program materials and tape position information indicative of a position on said tape recording medium, to and from oblique tracks on said tape recording medium;
and
a memory which stores therein recorded position information concerning a position of a commercial message portion along said longitudinal direction of said recording medium, and from which recorded position information can be read out and
a control unit which, in reproduction of said program materials, controls said recording/reproducing device to start a skip of commercial message portion at a tape speed which is higher than a normal reproduction speed, based on said recorded position information read out from said memory and said tape position information reproduced from said oblique tracks on said tape recording medium, and to stop said skip in accordance with a number of control pulses read out from said control pulse read/write unit, to return to said normal reproduction speed.

2 more elements

A method for recording/reproducing program material including audio and video signals on a tape recording medium, said method comprising:

recording said program material and tape position information indicative of a position on said tape recording medium to oblique tracks on said tape recording medium;
recording control pulses at a constant preset interval on a control track along a longitudinal direction of said tape recording medium together with said program material;
detecting commercial message portions during recording of said program material and storing recorded tape position information corresponding to said commercial portions, in a memory;
during reproduction of recorded program material from said tape recording medium,
reading position information recorded in said tape recording medium from said oblique tracks
reading recorded position information of said commercial portions from said memory;
and
controlling said reproduction to start a skip of a commercial message portion at a tape speed which is higher than a normal reproduction speed, based on said stored position information read out from said memory and said tape position information read from said oblique tracks on said recording medium, and to stop said skip in accordance with a number of control pulses read out form said tape recording medium, to return to said normal reproduction speed.

5 more elements

Dependencies are inferred from the claim text.

Image recording/reproducing apparatus

Life of this patent

Image recording/reproducing apparatus

Life of this patent

Abstract

Claims21