JPH09322091A - Electronic catalog display method in digital broadcasting system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To retrieve and display the prescribed one in a transmission electronic catalog by comparing control data added to electronic catalog data with the control data stored in a control data storage means and displaying only the data for which both match. SOLUTION: In the case that a first browsing mode is set, only a product belonging to a product class specified by a user in the transmission electronic catalog is displayed on a monitor 14. At the time, in the case that the electronic catalog data are displayed on the monitor 14, when the user inputs a selection command, the product class and a product number detected by a class detection part 15 and a product number detection part 16 are stored in a control data storage memory 20. Then, in the case that a second browsing mode is set, the product class and the product number detected in the detection parts 15 and 16 are sent to a comparison part 17 and compared with the control data stored in the memory 20 there. Then, operation signals are sent to a trigger generation part 18 only when both match. When triggers are outputted from the generation part 18, the electronic catalog data are written to an image memory 12 and displayed on the monitor 14.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic catalog display method in a digital broadcasting system such as a digital satellite broadcasting system, a digital terrestrial broadcasting system and a digital cable television broadcasting system.

[0002]

2. Description of the Related Art Attempts have been made to provide electronic catalogs to users by utilizing digital broadcasting such as digital satellite broadcasting. If only the electronic catalog corresponding to the product category or product number desired by the user is displayed among the electronic catalogs provided by digital broadcasting, all the data of the electronic catalog provided by digital broadcasting will be displayed on the user terminal. Generally, a method of storing in a storage device, searching electronic catalog data corresponding to a product category or product number desired by a user from the electronic catalog data stored in the storage device, and displaying the electronic catalog data is displayed.

FIG. 3 shows the configuration of a user-side terminal when an electronic catalog is provided to a user by digital satellite broadcasting using MPEG2.

At the broadcasting station (transmission side), video data, audio data and electronic catalog data of a normal television program are encoded. Then, after the encoded signals are multiplexed, they are modulated and output from the antenna. The signal output from the antenna is sent to the user side terminal (reception side) via the communication satellite.

In the user terminal, the tuner 101 selects a signal in the frequency band of the channel corresponding to the program selected by the user from the received signals. The selected signal is the digital demodulator 1
Demodulated by 02. The signal obtained by the digital demodulator 102 is sent to the error correction unit 103 and subjected to error correction processing. The signal after this error correction processing is sent to the transport decoder 104.

[0006] The transport decoder 104 extracts a packet corresponding to the program selected by the user. Then, the video data in the extracted packet is decoded by the video decoder 105 and then sent to the receiver 108 having the electronic catalog search function. The audio data in the extracted packet is decoded by the audio decoder 106 and then sent to the receiver 108. The electronic catalog data in the extracted packet is decoded by the data decoder 107 and then stored in the hard disk 110 in the receiver 108.

From the electronic catalog data stored in the hard disk 110, electronic catalog data corresponding to the product category or product number desired by the user is retrieved and displayed on the monitor.

[0008]

In the above-mentioned conventional method, all the electronic catalog data sent by digital broadcasting must be stored in a storage device such as a hard disk. There is a problem that is required.

According to the present invention, even if not all of the electronic catalog data sent from the sending side is stored in the storage device at the receiving side, the receiving side can select a predetermined amount from the electronic catalog data sent from the sending side. An object of the present invention is to provide an electronic catalog display method in a digital broadcasting system that can search for and display items.

[0010]

An electronic catalog display method in a digital broadcasting system according to the present invention is an electronic catalog displaying method in which a transmitting side repeatedly sends an electronic catalog data set having the same content including a plurality of electronic catalog data. In the catalog display method, data representing a product classification and data representing a product number are added as control data to each electronic catalog data included in the electronic catalog data set, and the first browsing mode is set on the receiving side. When set, the product category represented by the control data added to the electronic catalog data and the product category specified by the user are received each time the electronic catalog data sent from the sender is received. Comparing and matching both electronic catalog data Only the electronic catalog data is stored in the image memory and displayed on the display device. When the selection command is input by the user while the electronic catalog data is displayed on the display device, the control data of the displayed electronic catalog data is controlled. It is stored in the data storage means, and on the receiving side,
When the second browsing mode is set, every time the electronic catalog data sent from the sender is received, the product category and product number represented by the control data added to the electronic catalog data, and the control It is characterized in that the product category and the product number represented by the control data stored in the data storage means are compared with each other, and only the electronic catalog data corresponding to the both are stored in the image memory and displayed on the display device.

It is preferable to create the electronic catalog data set so that the electronic catalog data of the products belonging to the same product category appear periodically in the electronic catalog data set.

According to the electronic catalog display method in the digital broadcasting system according to the present invention, by setting the display mode to the first browsing mode, all electronic catalog data in the electronic catalog data set sent from the transmitting side is received. It is possible to retrieve and display only the electronic catalog data of the products belonging to the product category specified by the user from the electronic catalog data set sent from the transmission side without storing the data in the storage device on the side. Further, by setting the display mode to the second browsing mode, only the electronic catalog data having the product number selected by the user in the first browsing mode among the electronic catalog data displayed in the first browsing mode is displayed. The electronic catalog data set sent from the sender can be searched and displayed.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention applied to digital satellite broadcasting will be described below with reference to FIGS. 1 and 2.

FIG. 1 shows the structure of an electronic catalog data set sent from a broadcasting station.

From the broadcasting station, an electronic catalog data set Q having the same content including a plurality of electronic catalog data is repeatedly transmitted. Control data 1 is added to each electronic catalog data 2 included in the electronic catalog data set Q. Each electronic catalog data is composed of image data.

The control data 1 is data α, β, γ, η showing the product category (category) of the target product in the electronic catalog.
And the product numbers 1 to n attached to the products for each product category
Consists of In this example, there are four types of product categories of the target product in the electronic catalog: a television (TV), a video tape recorder (VTR), a telephone (TEL), and a CD player (CD).

The electronic catalog data set Q is created so that the electronic catalog data of products belonging to the same product category appear periodically in the electronic catalog data set Q. That is, the electronic catalog data set Q is composed of a plurality of sets of data sets q1 to qn each including four pieces of electronic catalog data. In each of the data sets q1 to qn, the television (T
V), video tape recorder (VTR), telephone (TE
The four electronic catalog data are arranged in the order of L) and the CD player (CD).

FIG. 2 shows the configuration of the electronic catalog display control unit provided in the receiver of the user side terminal.

On the user side terminal, there are a first browsing mode and a second browsing mode as display modes for displaying the electronic catalog.

First, the operation of the electronic catalog display control section when the first browsing mode is set will be described.

When displaying the electronic catalog in the first browsing mode, the user designates the product category of the electronic catalog to be searched by the operation unit (not shown). The classification data representing the product classification designated by the user is input to the comparison unit 17.

The data sent from the data decoder (see 107 in FIG. 3) to the receiver is separated by the image data / control data separation unit 11 into image data (electronic catalog data) and control data. . The electronic catalog data is sent to the image memory 12. The control data is sent to the classification detector 15 and the product number detector 16. The classification detection unit 15 detects the product classification of the electronic catalog data sent to the image memory 12 based on the sent control data, and sends the data representing the detected product classification to the comparison unit 17. The product number detector 16 detects the product number of the electronic catalog data sent to the image memory 12 based on the sent control data.

The comparison unit 17 compares the product classification detected by the classification detection unit 15 with the product classification specified by the user, and sends an operation signal to the trigger generation unit 18 only when both match. The trigger generator 18 is the comparator 1
When an operation signal is sent from 7, a trigger for writing the electronic catalog data currently sent to the image memory 12 is generated.

When a trigger is output from the trigger generator 18, the electronic catalog data currently sent to the image memory 12 is written in the image memory 12. The electronic catalog data written in the image memory 12 is sequentially read and sent to the D / A conversion unit 13. D / A converter 1
The electronic catalog data sent to the D.A.
After being converted into an analog image signal by the monitor 1,
4 is supplied. Therefore, the catalog image corresponding to the electronic catalog data is displayed on the monitor 14 as a still image.

That is, when the first browsing mode is set, among the electronic catalog data included in the electronic catalog data set sent from the broadcasting station, the products belonging to the product category designated by the user are selected. Only the electronic catalog data is displayed on the monitor 14. As described with reference to FIG. 1, the electronic catalog data set Q is created so that the electronic catalog data of products belonging to the same product category appear periodically in the electronic catalog data set Q. The electronic catalog data of the products belonging to the specified product category is displayed on the monitor 14 while browsing at a substantially constant speed.

When the electronic catalog data is displayed on the monitor 14 in the first browsing mode, when the user inputs a selection command, the product classification and product number detection unit 16 detected by the classification detection unit 15 detect it. The product number that has
The read control unit 19 controls the control data storage memory 2
0 is stored. That is, the control data (data representing the product classification and the product number) for the electronic catalog data currently displayed on the monitor 14 is stored in the control data storage memory 20.

Next, the operation of the electronic catalog display control section when the second browsing mode is set will be described.

In the case where the second browsing mode is set, the data sent from the data decoder (see 107 in FIG. 3) to the receiver is processed by the image data / control data separation unit 11 to obtain image data (electronic catalog). Data) and control data. The electronic catalog data is sent to the image memory 12. The control data is sent to the classification detection unit 15 and the product number detection unit 16, and the product classification and the product number are detected.

The product classification detected by the classification detection unit 15 and the product number detected by the product number detection unit 16 are sent to the comparison unit 17. The comparison unit 17 compares the product classification and product number detected by the classification detection unit 15 and the product number detection unit 16 with the control data (product classification and product number) stored in the control data storage memory. The operation signal is sent to the trigger generator 18 only when the values match. The trigger generation unit 18 includes the classification detection unit 15
When an operation signal is sent from the device, a trigger for writing the electronic catalog data currently sent to the image memory 12 is generated.

When a trigger is output from the trigger generator 18, the electronic catalog data currently sent to the image memory 12 is written in the image memory 12 and sent to the monitor 14 via the D / A converter 13. . Therefore, the second
When the browsing mode is set, only the electronic catalog data selected by the user from the electronic catalog data displayed on the monitor 14 in the first browsing mode is the electronic catalog data set transmitted from the broadcasting station. Are retrieved from and displayed on the monitor 14.

In the above embodiment, the electronic catalog data set is created so that the electronic catalog data of the products belonging to the same product category appear periodically in the electronic catalog data set. It is not necessary to create the electronic catalog data set so that the electronic catalog data of 1 appears periodically.

In the above embodiment, the display mode is set to the first browsing mode so that the user does not have to store all the electronic catalog data in the electronic catalog data set sent from the broadcasting station in the storage device. Only the electronic catalog data of the products belonging to the product category designated by can be searched from the electronic catalog data set sent from the broadcasting station and displayed.
Therefore, it is not necessary to provide the user-side terminal with a large-capacity storage device capable of storing all the electronic catalog data in the electronic catalog data set sent from the broadcasting station.

By setting the display mode to the second browsing mode, among the electronic catalog data displayed in the first browsing mode, the electronic catalog data having the product number selected by the user in the first browsing mode is displayed. Can be displayed by searching from the electronic catalog data set sent from the broadcasting station.

[0034]

According to the present invention, even if not all of the electronic catalog data sent from the sending side is stored in the storage device at the receiving side, the receiving side can store the electronic catalog data sent from the sending side. It becomes possible to search for and display a predetermined one.

[Brief description of drawings]

FIG. 1 is a schematic diagram showing a configuration of an electronic catalog data set transmitted from a broadcasting station.

FIG. 2 is a block diagram showing a configuration of an electronic catalog display control unit provided in a receiver of a user side terminal.

FIG. 3 is a block diagram showing a configuration of a user side terminal when an electronic catalog is provided to a user by digital satellite broadcasting using MPEG2.

[Explanation of symbols]

 11 image data / control data separation unit 12 image memory 13 D / A conversion unit 14 monitor 15 classification detection unit 16 product number detection unit 18 trigger generation unit 20 control data storage memory

Front page continuation (72) Inventor Ryuji Kaneda 2-5-5 Keihan Hondori, Moriguchi City, Osaka Sanyo Electric Co., Ltd.

Claims (2)

[Claims] 1. An electronic catalog display method in a digital broadcasting system in which an electronic catalog data set of the same content including a plurality of electronic catalog data is repeatedly transmitted from a transmitting side, each electronic catalog included in the electronic catalog data set. The data indicating the product category and the data indicating the product number are added to the data as control data. When the first browsing mode is set on the receiving side, the electronic catalog data sent from the transmitting side is received. Each time, the product category represented by the control data added to the electronic catalog data is compared with the product category specified by the user, and only the electronic catalog data in which both match is stored in the image memory. The electronic catalog data on the display device. When the selection command is input by the user while the display mode is set, the control data of the displayed electronic catalog data is stored in the control data storage means, and when the second browsing mode is set on the receiving side, Every time the electronic catalog data sent from the sending side is received, the product category and product number represented by the control data added to the electronic catalog data and the control data stored in the control data storage means are used. A method of displaying an electronic catalog in a digital broadcasting system, characterized in that the displayed product category and product number are compared with each other, and only the electronic catalog data that matches the two is stored in an image memory and displayed on a display device. 2. In the electronic catalog data set,
The electronic catalog display method in a digital broadcasting system according to claim 1, wherein the electronic catalog data set is created so that the electronic catalog data of the products belonging to the same product category appear periodically.