KR930001738Y1 - Automatic time-setting apparatus for vcr - Google Patents

Abstract

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Description

VCR's Clock Adjuster

1 is a block diagram of the present invention clock automatic adjustment device.

2 is a flow chart of the present invention clock automatic adjustment device.

* Explanation of symbols for main parts of the drawings

A: Key Matrix B: Mycom

C: Tuner D: Data Slicer

E: Data Decoder F: Memory

G: clock section

The present invention relates to a clock automatic adjustment device of a VCR, and in particular, a clock of a VCR that allows the broadcasting station to automatically adjust the time of the VCR clock by using a type data signal transmitted together with a TeleText data signal. It relates to an automatic adjustment device.

In general, the VCR is equipped with a clock for convenience of use of the VCR as well as a unique function of the clock that displays the date, the day of the week, and the current time. In the case of the conventional VCR having the clock, the clock has a date, To adjust the day and current time, turn on the VCR's input power; When the time is off or the time is not set correctly, the user has to adjust the time of the clock manually, and the clock has its own structural problem, which causes an error of time. There was a problem that does not give credibility.

An object of the present invention is to provide a clock time automatic adjustment device that can automatically adjust the time automatically without the user having to adjust the time when the input power of the VCR is on, off or not correctly set. In order to realize the object, the present invention is a VCR with a clock that displays the current date, day of the week, and time, and a key matrix for inputting data for a desired operation by a user, a station selection, and a text broadcasting time. Detecting a micom for receiving and transmitting data; and detecting a station signal selected by the selection signal of the micom. A tuner to amplify, a data slicer for converting time data among the broadcast station signals selected by the tuner into a digitalized signal, a data decoder for decoding the digitalized signal from the data slicer and converting the digitalized signal into digital data; And a clock for displaying the time data by the control signal of the dicom and a memory in which the digital time data is stored.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

In a typical VCR with a clock that displays the current date, day of the week and time as shown in FIG. 1, a key matrix A for inputting arbitrary data for a desired operation by the user, and the key matrix Receives data input from (A) and controls in a pre-programmed state to receive desired time data from a control signal for selecting a broadcasting station and a data signal transmitted together with a text multiplexing signal from the broadcasting station and transmits the received data ( B) and a tuner (C) which selects a desired broadcasting station signal according to the broadcasting station selection control signal of the microcomputer (B) and transmits a time signal carried on the text multiple broadcasting signal, and detects and amplifies the time signal of the selected broadcasting station. When the time signal is selected to the high frequency character multiplexed broadcast data selected by the tuner (C), the signal is converted into a digitalized signal. A data slicer D to be an operation signal for transmitting the signal and a time signal to the character multiplexing signal of the operation signal by the data slicer D, and converts the time signal into a digital signal, which is then transmitted to the microcomputer B. A data decoder (E) for selecting time data, a memory (F) in which time data to be transmitted by the data decoder (E) is stored and stored, and a time decoder to be transmitted stored in the memory (F) The data read by E) and the read data are constituted by the clock section G to be displayed by the transmission signal of the microcomputer B.

Referring to the effect of the present invention made up as described above are as follows.

First, when the VCR is turned on, each broadcasting station signal carrying the time signal along with the character multiplex broadcasting signal by the flow chart of FIG. 1 is input through the tuner C to perform the original function of the VCR. When the station selection signal of the key metric A is input to the microcomputer B for setting, the microcomputer B controls the input signal, and then sends the channel selection control signal to the tuner C to the tuner C. Selects the desired broadcasting station signal, detects and amplifies the character multiple broadcasting signal carrying the time signal, and transmits the same to the data slicer D. FIG.

In the data slider D, only the time signal is selected from among the character multicasting signals carrying the time signal amplified by the tuner C, and the time signal is converted into a signal for digitalization and transmitted to the data decoder E.

Therefore, in the data decoder E, the time signal selected by the data slicer D is converted into a binarized digital signal and transmitted to the microcomputer B. In the microcomputer B, the input signal is controlled and then again the data decoder. The data decoder E decides the time data to be transmitted, and stores it in the memory F.

At this time, the time signal containing the date and time transmitted together with the text multi-broadcast data signal transmitted from the broadcasting station is actually transmitted during the return synchronization time. Therefore, it is necessary to continuously receive several signals and process the data. The stored time data is kept in the storage state by the data decoder E. When the read control signal is applied to the data decoder E in the microcomputer B, the data decoder E is stored in the memory F. The time data is read out and transmitted to the microcomputer B. The microcomputer B sends the read time data to the clock unit G so that the clock unit G displays the time data to set the time. That is, the clock time of the VCR is adjusted and set as a time signal transmitted along with a text multiplexing signal continuously input from a broadcasting station.

As described above, the present invention separates the time signal, which is carried together with the character multicast signal transmitted from the broadcasting station, by using the data slicer data decoder and memory by the control signal of the microcomputer, converts the digital signal into a digital signal, and then clocks the VCR. By transmitting a negative signal so that the time signal transmitted from the broadcasting station is displayed, the time transmitted from the broadcasting station is always displayed on the VCR clock. Thus, the time caused by the problem of the clock itself can be prevented, thereby improving the reliability of the clock. Of course, sometimes an error occurs or when the input power of the VCR is turned on and off, it provides an advantage of eliminating the hassle of having to readjust manually.

Claims (1)

In a typical VCR with a clock indicating the current date, day and time, a key matrix A for inputting arbitrary data for a desired operation by a user, and data input from the key matrix A are stored. A microcomputer (B) which selects a broadcasting station and receives and transmits time data transmitted from the selected broadcasting station, and a tuner (C) which detects and amplifies the broadcasting station selection and time signal according to the selection signal of the microcomputer (B); And a data slicer E for selecting the amplified time signal and converting the amplified time signal into a digital signal and converting the time signal transmitted from the data slicer E into a control signal of the microcomputer B. The time read by the data decoder E, which selects the time data to be transmitted and stores it in the memory F, and the time data read signal of the microcomputer B; VCR clock time of automatic adjustment device that consists of a hayeoseo clock unit (G) for displaying the itaconic characterized.