KR960016148B1 - Clock setting method & apparatus of television for extending data-service - Google Patents

Abstract

(A) checking whether a control code inputted by being decoded by a decoder is 01h or 02h which indicates the transmission start or on-transmission of EDS data; (B) checking whether a carrier code is 01h which indicates that EDS data is the information about a clock; and (C) a data-analyzing after inputting the EDS data to output the data to a clock part.

Description

Clock setting method and apparatus of TV using extended data service

1 is a schematic configuration diagram of an apparatus according to the present invention.

2 is a flow chart of a microcomputer according to the present invention.

* Explanation of symbols for main parts of the drawings

10: Tuner part 20: Intermediate frequency IC

30: image processing unit 40: data slice IC

50: decoder 60: microcomputer

70: clock portion 80: clock display portion

According to the present invention, in a television having a caption broadcasting receiver, the clock information included in an extended data service (EDS) transmitted from a broadcasting station is used to provide the information at the time of power failure or installation of the television. The present invention relates to a clock setting method and apparatus for a television set using an extended-data-service which allows the television clock to be set automatically.

With the recent widespread use of television and the fact that almost all homes have at least one television, television has become an important carrier of information to the general public, with leading countries such as the US and Europe. Initiated captions / text broadcasts are also a realization for information delivery using such televisions.

In addition, since caption / text can transmit various information as well as contents related to television broadcasting, it has been the subject of many studies on how to use TV caption / text broadcasting as a medium for transmitting various information to related parties and developers. come.

At the same time, the necessity of standardization in caption / text information transmission has been increased in order to prevent disordered flooding of information due to the complexity and diversification in using caption / text broadcasting as described above. On October 22, 2010, the data to be transmitted to the caption / text broadcasting line, that is, the specification of the contents and transmission method of the EDS was proposed and released in draft EIA-608, and the future EDS using the caption / text broadcasting was drafted. It is likely to be transmitted to television in accordance with the standard of EIA-608.

The present invention uses the EDS data transmission method according to the standard of draft EIA-608 as described above, and the power supply due to sudden power failure or wrong touch of electronic equipment by using clock information about the current time in the contents of the EDS data. When this is off and on again, it eliminates the inconvenience of having to manually adjust the clock of the television again, and also eliminates the need for a charging device for power failure and re-adjusts the clock with the correct time every time. An object of the present invention is to provide a clock setting method and apparatus for a television using an extended-data-service which can display accurate time by zooming.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings of FIGS. 1 to 2.

1 is a schematic configuration diagram of an apparatus for carrying out the present invention, and includes a tuner unit 10 of a television receiving a broadcast signal and an intermediate frequency IC 20 filtering the broadcast signal output from the tuner unit 10. ), An image processing unit 30 to which the broadcast signal filtered by the intermediate frequency IC 20 is input, a data slice IC 40 which extracts EDS data from the broadcast signal filtered by the intermediate frequency IC 20, and And a decoder 50 which decodes the EDS data extracted by the data slice IC 40 and a microcomputer 60 which performs an instruction by the EDS data decoded by the decoder 50.

2 is a flow chart of a microcomputer according to the present invention, in which step (A) of checking whether a control code decoded by a decoder and inputted is 01h or 02h indicating that EDS data transmission is being started or transmitted; (B) checking whether the carrier code inputted is 01h indicating whether the EDS data is information on a clock, and inputting the EDS data code input next to the carrier code and outputting the data to the clock unit after data analysis (C). It is composed of

Referring to the clock setting method of the television using the EDS of the present invention made of the above-described flow in detail based on the operation and effects are as follows.

First, the method of transmitting EDS data proposed by the draft EIA-608 will be described. The EDS data is transmitted along with the caption / text data in the 21st vertical blanking period of the television broadcast signal. While all field 2 is used, EDS data uses field 2 only.

In addition, the EDS transmission is composed of a control code for indicating the start or transmission of the EDS transmission, a carrier code for informing information about the contents of the data to be transmitted, and an actual data code.

Details are shown in detail in draft EIA-608, where the code used in the present invention is described. The EDS carrier code indicating the start or transmission of the EDS transmission and the current EDS information is 01h, indicating the clock. The EDS data code consists of four character codes, the first character representing minutes, the second character representing hours, the third character representing dates, and the fourth character representing months.

The EDS configured as described above is serviced by the transmitting broadcast station using field 2 during caption / text data transmission. Like the broadcast signal, the EDS is received by the tuner unit 10 and frequency filtered by the intermediate frequency IC 20. Only the EDS data is extracted by the slice IC 40 and sent to the decoder 50.

The microcomputer 60 performs the command according to the present invention according to the code decoded and input by the decoder 50. The control code indicating that the EDS information is being transmitted is 01h or 02h, and the contents of the EDS data to be transmitted are displayed. If the carrier code indicated is 01h (A, B), the process according to the present invention is started.

Since the EDS data input after the above conditions are satisfied, the clock information is set, the clock can be set by analyzing the input data and outputting it to the clock unit 70, and the clock is readjusted and clocked. The display portion 80 is shown.

As described above, the clock setting method of the television using the EDS of the present invention uses the clock information of the EDS transmitted through caption / text broadcasting, and thus, when the power is turned off and then on again due to a sudden power outage or wrong touch of the device. Again, it eliminates the hassle of having to manually adjust the clock of the TV by hand, and adjusts the clock to the correct time every time, so that the correct time can be displayed.

Claims (2)

(A) checking whether the control code decoded by the decoder and inputted is 01h or 02h indicating the start or transmission of EDS data transmission, and information on the clock of which the EDS data is the carrier code input after the control code; A step (B) of confirming whether the signal is 01h indicating whether or not, and a step (C) of inputting an EDS data code input next to the carrier code and outputting the data to a clock part after analyzing the data; How to set clock for TV. The tuner unit 10 of a television receiving a broadcast signal, the intermediate frequency IC 20 filtering the broadcast signal output from the tuner unit 10, and the broadcast signal filtered by the intermediate frequency IC 20 are input. The image processing unit 30, the data slice IC 40 for extracting EDS data from the broadcast signal filtered by the intermediate frequency IC 20, and the EDS data extracted by the data slice IC 40 are decoded. And a decoder (50) and a microcomputer (60) which executes a command by EDS data decoded by the decoder (50).