Motion video signal processing for recording or reproducing – Local trick play processing – With randomly accessible medium
Reexamination Certificate
1999-02-26
2004-06-15
Tran, Thai (Department: 2615)
Motion video signal processing for recording or reproducing
Local trick play processing
With randomly accessible medium
C386S349000
Reexamination Certificate
active
06751397
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to a video signal recording and playing-back apparatus that employs e.g. a magnetic tape, and also relates to a video signal displaying apparatus including a television receiver.
BACKGROUND OF THE INVENTION
Home-use video signal recording and playing-back apparatuses such as video cassette recorders have been coupled with video signal displaying apparatuses such as television receivers, and bi-directional communications therebetween have widely prevailed in the home-entertainment-market.
A conventional arrangement discussed above is hereinafter described with reference to FIG.
2
.
First, an operation of conventional video cassette recorder (VCR)
110
is described. When an operation preset by a timer starts, controller
12
transmits the information of starting a preset time to display-instruction-section
11
and video-output-section
13
. Display-instruction-section
11
sends a message of starting the preset time to video-output-section
13
. Video-output-section
13
then sends the video signal and the message to outer-input-section
17
of conventional video signal displaying apparatus (TV)
210
. If channel selector
15
, which selects signals from tuner
16
or outer input section
17
, selects the signals from outer input section
17
that receives signals from the VCR
110
, display section
14
displays the video signal and message from the VCR
110
. On the other hand, if channel selector
15
selects the signals from tuner
16
that receives on-air signals, display section
14
only displays the on-air signals.
The conventional structure discussed above, however, has a problem that a user does not notice when the preset time starts while the user watches the on-air signal on TV
210
.
SUMMARY OF THE INVENTION
The present invention addresses the problem discussed above, and aims to provide a video signal recording and playing-back apparatus as well as a video signal displaying apparatus. These apparatuses can give a user a notice of starting a preset time with displaying a message when the time comes, regardless of the channel the user now watches.
The video signal recording and playing-back apparatus as well as the video signal displaying apparatus of the present invention has the following construction.
First, the video signal recording and playing-back apparatus (hereinafter referred to as a VCR) comprises the following two elements:
(a) a controller for recording and playing-back video signals; and
(b) a first communicator for transmitting the information responsive to an operation and/or a state of the controller to the video signal displaying apparatus.
Second, the video signal displaying apparatus (hereinafter referred to as a TV) comprises the following elements:
(c) a tuner for receiving on-air signals;
(d) an outer input section for receiving video signals from the VCR;
(e) a channel selector for selecting output signals from the tuner or the outer input section;
(f) a display section for displaying video signals tapped off from the channel selector;
(g) a second communicator for receiving the information transmitted from the first communicator; and
(h) a display controller for displaying the information received by the second communicator on the display section.
Regardless of the video signals selected by the channel selector, the construction discussed above allows the display section of the TV to indicate the operation or the state of the VCR.
The present invention thus can display the message that the VCR starts a preset time when the time comes regardless of the present active channel on the TV. In addition, the present invention can display various operations and states of the VCR on the display section of the TV, which effects user-friendly operations as well as operations adaptable to technical innovation.
REFERENCES:
patent: 4831449 (1989-05-01), Kimura
patent: 5285265 (1994-02-01), Choi
patent: 5389976 (1995-02-01), Miyagawa et al.
patent: 5499115 (1996-03-01), Kojima et al.
patent: 5631995 (1997-05-01), Weissensteiner et al.
patent: 5986650 (1999-11-01), Ellis et al.
patent: 5991498 (1999-11-01), Young
patent: 1144438 (1997-03-01), None
patent: 505006 (1992-09-01), None
patent: 0535749 (1993-04-01), None
patent: 62-57375 (1987-03-01), None
Peoples Republic of China Notice of Office Action for 99102452.4, dated Feb. 14, 2003 and English translation thereof.
Hirose Koji
Yoshida Seiji
Matsushita Electric - Industrial Co., Ltd.
Onuaku Christopher
RatnerPrestia
Tran Thai
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