Motion video signal processing for recording or reproducing – Local trick play processing – With randomly accessible medium
Reexamination Certificate
2000-05-10
2004-06-29
Tran, Thai (Department: 2615)
Motion video signal processing for recording or reproducing
Local trick play processing
With randomly accessible medium
C725S141000
Reexamination Certificate
active
06757477
ABSTRACT:
BACKGROUND OF THE INVENTION
The invention relates to a processing arrangement s defined in the opening part of claim 1.
A processing arrangement of the type defined in the opening part of claim 1 is known from the document WO 97/10682 and takes the form of a set top box. The known set top box is connected to a television set by means of two cable connections adapted to be connected to first analog connection means of the set top box, the cable connections enabling analog audio and video information to be transferred. A composite video signal can be applied to the television set via one of these cable connections and a component video signal can be applied to the television set via the other cable connection. The component video signal contains more picture information than the composite video signal, which is why it is possible to display television pictures of a higher quality by means of a component video signal applied to the television set than by means of a composite video signal applied to the television set.
The set top box is connected to a DVHS video recorder by a cable connections adapted to be connected to second analog connection means and digital connection means of the set top box. Via the second analog connection means an analog composite video signal and via the digital connection means digital A/V data A/D and control data containing audio, video and control information can be applied to the DVHS video recorder. The DVHS video recorder is adapted to record and reproduce analog A/V signals in accordance with the VHS standard and digital A/V data in accordance with the DVHS standard.
The known DVHS video recorder further has OSD generator means adapted to generate and supply text information for on-screen display as A/V information. In addition, the DVHS video recorder has an OSD insertion stage by means of which an A/V signal generated by the OSD generator means can be inserted into an A/V signal reproduced by the DVHS video recorder or applied to the DVHS video recorder via its analog connection means, in order to insert the on-screen display information generated by the OSD generator means into video information for the joint display of said information by means of the television set.
The known DVHS video recorder can be employed in accordance with two possibilities of use in order to insert on-screen display information into video information reproduced as A/V data in the digital reproducing mode of the DVHS video recorder and jointly display said information by means of the television set.
A satellite antenna is connected to the set top box to supply analog and digital reception signals to the set top box. The set top box includes decoding means by which digital reception signals are decoded in order to supply them as an analog composite video signal or as an analog component video signal to transfer means of the set top box. The transfer means are adapted to transfer information applied to connection means of the set top box to other connection means of the set top box.
By actuation of keys of the set top box a user of the set top box can choose which information applied to the connection means of the set top box is to be displayed by the television set or is to be recorded or reproduced by the DVHS video recorder. In order to use the higher quality component video signal for the display of television pictures by means of the television set when both a component video signal and a composite video signal are available, the component video signal itself forms output control information that characterizes the supply of the component video signal by the first connection means in the known set top box.
The known television set has switching means which, when output control information is present, process the component video signal, and not a composite video signal which may be supplied by the first connection means, in order to display television pictures by means of the television set.
The known set top box has the disadvantage that when the DVHS video recorder is set to a recording mode the A/V signal or the A/V data of the television program being displayed by the television set is not automatically recorded by the DVHS video recorder. This disadvantage occurs when via the second analog connection means an A/V signal or via the digital connection means A/V data is applied to the DVHS video recorder of another television program than supplied to the television set via the first analog connection means in order to be displayed by means of the television set. Moreover, this disadvantage may arise when the DVHS video recorder has been set to record an A/V signal supplied by a tuner of the DVHS video recorder or the television set displays a television program of an A/V signal supplied by a tuner of the television set, which signal is not supplied to the television set by the first analog connection means. In each of these cases the A/V signal or A/V data of another television program than desired by the user is recorded by the DVHS video recorder, which is a major disadvantage.
SUMMARY OF THE INVENTION
It is an object of the invention to provide a processing arrangement in which the afore-mentioned disadvantages are avoided. In a processing arrangement of the type defined in the opening part of claim 1 this object is achieved by means of the measures defined in the characterizing part of claim 1.
Thus, it is achieved that at the beginning of a recording mode in the DVHS video recorder, when an A/V signal of a television program just being displayed on the television set is applied to the television set by the first analog connection means, this signal, which may be a processed digital reception signal, is supplied to the DVHS video recorder as an A/V signal via the second analog connection means and/or as digital A/V data via the digital connection means. On the other hand, an A/V signal of a television program being displayed on the television set and supplied by a tuner of the television set is transferred from the first analog connection means to the second analog connection means by the transfer means from the beginning of a recording mode in the DVHS video recorder, as a result of which it is achieved that this A/V signal is recorded by means of the DVHS video recorder.
The measures defined in claim 2 yield the advantage that a DVHS video recorder can supply recording mode information in the form of digital control data to the processing arrangement via the digital connection means, which recording mode information indicates whether analog or digital recording by the DVHS video recorder is possible or required, for which reason a user of the set top box need not enter this information manually by means of keys of the set top box.
The measures defined in claim 3 yield the advantage that a television program to be recorded by means of the DVHS video recorder can be supplied to the DVHS video recorder by the set top box as an analog A/V signal or as digital A/V in accordance with recording mode information, so as to enable a corresponding recording.
The measures defined in claim 4 yield the advantage that by means of its digital connection means the set top box can be connected to a multitude of DVHS video recorders because the IEEE 1394 standard is already broadly accepted.
The measures defined in claim 5 yield the advantage that by means of its first and second analog connection means the set top box can be connected to a multitude of DVHS video recorders and television sets because substantially any video recorder and any television set has at least one SCART connector.
REFERENCES:
patent: 6002394 (1999-12-01), Schein et al.
patent: 6266480 (2001-07-01), Ezaki et al.
patent: 6289169 (2001-09-01), Okuyama
patent: 6304714 (2001-10-01), Krause et al.
patent: 9710682 (1997-03-01), None
Asano Makoto
Blümel Werner
Kuchar Franz
Proidl Adolf
Koninklijke Philips Electronics , N.V.
Onuaku Christopher
Tran Thai
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