Television – Diverse device controlled by information embedded in video...
Utility Patent
1998-02-02
2001-01-02
Lee, Michael H. (Department: 2714)
Television
Diverse device controlled by information embedded in video...
C348S461000, C348S473000, C348S725000, C368S010000, C386S349000
Utility Patent
active
06169580
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a method for automatically adjusting a time difference for a video instrument, and in particular to an improved method for automatically adjusting a time difference for a video instrument which is capable of automatically adjusting a time difference based on a broadcasting signal transmission region and a broadcasting signal receiving region.
2. Description of the Background Art
FIG. 1
illustrates a conventional automatic time setting apparatus based on is a broadcasting signal, which includes a tuner
10
for selecting a channel signal among the broadcasting signals inputted through an antenna ANT, a time data detector
11
for detecting a time data from the broadcasting signal selected by the tuner
10
, an input unit
12
for receiving an input signal selected by a user, a timer
13
for setting a time, a display unit
14
for displaying the time set by the timer
12
, and a microcomputer
15
for detecting the output signal from the input unit
12
and adjusting the time of the timer
13
in accordance with a time data inputted from the time data detector
11
.
The operation of the conventional automatic time setting apparatus will now be explained with reference to the accompanying drawings.
When a user selects a broadcasting channel using the input unit
12
, the microcomputer
15
detects the output signal from the input unit
12
and controls the tuner
10
.
The tuner
10
selects a broadcasting channel corresponding to the broadcasting channel selected by the user among the high frequency broadcasting signals of each channel inputted through the antenna ANT, namely, the tuning data outputted from the microcomputer
15
and the time data detector
11
detects the time data from the broadcasting signals selected by the tuner
10
and outputs the thusly detected data to the microcomputer
15
.
The method for detecting the time data from the broadcasting signal is disclosed in U.S. Pat. No. 5,329,500 which is pertained to the same assignee of this application.
Namely, a high frequency current time data is received from the broadcasting station and then is amplified and demodulated, thus converting the data into a digital signal. The thusly converted digital signal is decoded, and a time data is detected. Therefore, the microcomputer
15
checks the alignment of bits of the decoded time data and recognizes the time.
In addition, the microcomputer
15
judges whether the selected broadcasting signal is a broadcasting signal which is first received after the operation power is applied. If the selected broadcasting signal is the broadcasting signal which is first received after the operation power is applied, the microcomputer
15
transmits the time data outputted from the time data detector
11
to the timer
13
and sets the current time. The set time is displayed on the display unit
14
.
If the selected broadcasting signal is not the broadcasting signal which is first received after the operation power is applied, the microcomputer
15
recognizes that the time adjusting operation was already performed at the time when the broadcasting signal was first received. Therefore, the time setting operation is not performed.
However, when a user who lives in the regions near the time differential line receives a broadcasting signal or satellite broadcasting signal from the broadcasting system of the different region which is located opposite with respect to the time differential line, since the conventional automatic time setting apparatus sets the time based on the time data contained in the broadcasting signal without using the time difference between the region in which the broadcasting signal is transmitted and the region in which the broadcasting signal is received, the user may incorrectly set the time.
Therefore, various functions which are set based on the time such as a program or system ON/OFF reservation function of the video instrument may be incorrectly set, thus causing much inconvenience when setting the time or reserving a program or the like.
SUMMARY OF THE INVENTION
Accordingly, it is an object of the present invention to provide a method for automatically adjusting a time difference for a video instrument which overcomes the aforementioned problems encountered in the background art.
It is another object of the present invention to provide a method for automatically adjusting a time difference for a video instrument which is capable of automatically adjusting the time difference based on a broadcasting signal transmitting region and a broadcasting signal receiving region when a user who lives in the region near the time differential line receives a broadcasting signal or satellite broadcasting signal from the other region which is located opposite with respect to the time differential line.
To achieve the above objects, there is provided a method for automatically adjusting a time difference for a video instrument according to a first embodiment which includes the steps of a first step for setting and storing a time difference adjusting data, a second step for selecting a corresponding channel in accordance with a key input of a user, a third step for detecting a broadcasting station ID and a time data from the selected channel broadcasting signal, a fourth step for reading a time difference data corresponding to the detected broadcasting station ID from a memory, a fifth step for adding the read time difference adjusting data and the detected time data, a sixth step for performing a time adjusting operation in accordance with the added time data, and a seventh step for performing a time adjusting operation in accordance with the added time data.
To achieve the above objects, there is provided a method for automatically adjusting a time difference for a video instrument according to a second embodiment which includes the steps of setting a reserved program recording data setting mode, setting a broadcasting channel, a reserved program recording start time, a reserved program recording stop time, and a recording speed in the reserved program recording data setting mode, recognizing the set broadcasting channel as a broadcasting station ID, judging whether the broadcasting signal transmitting region is located in the region in which a time difference occurs based on the recognized broadcasting station ID, and performing the reserved time adjusting operation of the reserved program recording start time and reserved program recording stop time when the broadcasting signal transmitting region is in the region in which the time difference occurs as a result of the judgement and terminating the reserved time adjusting operation when the broadcasting signal transmitting region is in the region in which the time difference does not occur.
Additional advantages, objects and features of the invention will become more apparent from the description which follows.
REFERENCES:
patent: 5329500 (1994-07-01), Baik et al.
patent: 5561461 (1996-10-01), Landis et al.
patent: 5608534 (1997-03-01), Park et al.
patent: 5617146 (1997-04-01), Duffield et al.
Park Sang Bong
Shin Keun Cheol
Lee Michael H.
LG Electronics Inc.
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