KR20110011021A - Service method of digital broadcasting - Google Patents

Service method of digital broadcasting Download PDF

Info

Publication number
KR20110011021A
KR20110011021A KR1020090068452A KR20090068452A KR20110011021A KR 20110011021 A KR20110011021 A KR 20110011021A KR 1020090068452 A KR1020090068452 A KR 1020090068452A KR 20090068452 A KR20090068452 A KR 20090068452A KR 20110011021 A KR20110011021 A KR 20110011021A
Authority
KR
South Korea
Prior art keywords
digital
broadcast
digital broadcast
analog
providing
Prior art date
Application number
KR1020090068452A
Other languages
Korean (ko)
Inventor
정영학
Original Assignee
삼성전기주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 삼성전기주식회사 filed Critical 삼성전기주식회사
Priority to KR1020090068452A priority Critical patent/KR20110011021A/en
Publication of KR20110011021A publication Critical patent/KR20110011021A/en

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H40/00—Arrangements specially adapted for receiving broadcast information
    • H04H40/18—Arrangements characterised by circuits or components specially adapted for receiving
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N17/00—Diagnosis, testing or measuring for television systems or their details
    • H04N17/04—Diagnosis, testing or measuring for television systems or their details for receivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level

Abstract

PURPOSE: A digital broadcasting providing method is provided to automatically convert a digital broadcasting into an analog broadcasting, thereby continuously providing a receiving service to a user. CONSTITUTION: A digital TV receives a digital broadcasting signal(S11). The digital TV detects a RSSI(Received Signal Strength Indication) of the digital broadcasting signal(S12). The digital TV compares the RSSI and preset threshold value. If the RSSI is smaller than the preset threshold value, the digital TV receives an analog broadcasting signal(S13,S14). The digital TV provides an analog broadcasting to a user.

Description

How to Offer Digital Broadcasting {SERVICE METHOD OF DIGITAL BROADCASTING}

The present invention relates to a digital broadcast providing method, and more particularly, to a digital broadcast providing method capable of automatically converting a digital broadcast into an analog broadcast in an environment where reception of the digital broadcast is not easy.

In recent years, the replacement of existing analog broadcasting into digital broadcasting has been actively performed worldwide. For example, in the United States, in June 2009, all TV broadcasts were converted to digital TVs. In Korea, in 2012, all TV broadcasts were converted into digital TV broadcasts. It is pushing. At the present time in this transition process, digital broadcasting is simultaneously provided with existing analog broadcasting, and there exists a digital broadcasting service restricted area where digital broadcasting is not yet provided.

Accordingly, when the digital broadcast service is moved to the restricted area of the digital broadcast service while receiving the digital broadcast, there is a problem that the reception quality of the digital broadcast is degraded and the broadcast reception itself is impossible. In order to solve this problem, a receiver capable of both digital and analog broadcast switching and analog broadcast reception has been proposed.

A conventional digital-analog broadcast switchable receiver processes a digital broadcast signal input from an antenna to extract a broadcast format, stores the broadcast format, and then compares the received digital broadcast signal with a stored broadcast format to receive the received digital broadcast. If the signal duration of the broadcast format does not match, the digital signal processor stops the operation and the analog signal processor is implemented by receiving an analog broadcast.

However, in the case of digital broadcasting, since the broadcasting format is changed from time to time according to the type of digital content, the conventional digital-analog broadcasting switching method has a problem in that digital-analog broadcasting switching cannot be performed smoothly.

The present invention has been made in an effort to provide a digital broadcast providing method capable of automatically converting a digital broadcast into an analog broadcast in an environment where reception of the digital broadcast is not easy.

According to an aspect of the present invention,

Receiving a digital broadcast signal to provide digital broadcast;

Detecting a received signal strength value (RSSI) of the digital broadcast signal;

A first comparing step of comparing the received signal strength value with a preset threshold value; And

Receiving an analog broadcast signal and providing an analog broadcast when the received signal strength value is smaller than a preset threshold;

It provides a digital broadcast providing method comprising a.

In one embodiment of the present invention, after the step of providing the analog broadcast, the second comparison step of comparing the received signal strength value and the threshold value of the digital broadcast signal; And receiving the digital broadcast signal and providing the digital broadcast again when the received signal strength value is greater than a preset threshold.

In one embodiment of the present invention, the providing of the analog broadcast may include providing an analog broadcast including the same content as the content being provided in the providing of the digital broadcast.

In one embodiment of the present invention, the method may further include searching and storing the digital broadcast channel and the analog broadcast channel.

According to the present invention, even when moving to an environment in which digital broadcasts cannot be received while receiving digital broadcasts, there is an effect that a user can be provided with a service that can seamlessly receive broadcasts by automatically switching to analog broadcasts.

Hereinafter, various embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, embodiments of the present invention may be modified in various other forms, and the scope of the present invention is not limited to the embodiments described below. Embodiment of this invention is provided in order to demonstrate this invention more completely to the person skilled in the art to which this invention belongs. Therefore, it should be noted that the shape and size of the components shown in the drawings may be exaggerated for more clear explanation.

1 is a flowchart illustrating a digital TV broadcasting providing method according to an embodiment of the present invention.

As shown in FIG. 1, in the digital broadcast providing method according to an embodiment of the present invention, the method includes receiving a digital broadcast signal and providing a digital broadcast to a user (S11), and a received signal strength value of the digital broadcast signal. (SSI) detecting; and the first comparison step S13 of comparing the received signal strength value with a preset threshold value and the analog broadcast signal when the received signal strength value is smaller than a preset threshold value. Receiving and providing an analog broadcast to the user (S14) can be configured.

In addition, the digital broadcast providing method according to the embodiment of the present invention includes a second comparison step of comparing the received signal strength value of the digital broadcast signal with the threshold value and the received signal strength value is larger than a preset threshold value. The method may further include receiving the digital broadcast signal and providing the digital broadcast to the user again.

In addition, the digital broadcast providing method according to an embodiment of the present invention may further include searching and storing the digital broadcast channel and the analog broadcast channel.

2 is a block diagram illustrating an example of a digital-analog broadcasting combined receiver to which a digital broadcasting providing method according to an embodiment of the present invention is applied.

As shown in FIG. 2, the digital-analog combined receiver includes an antenna 21 for receiving digital and analog broadcast RF signals, and a signal separation unit for separating the received digital and analog broadcast RF signals into different paths, respectively. 22), band pass filter units 23a and 23b for extracting only signals having a frequency of a desired band among the signals of each path, and an RF processor for downconverting the filtered digital and analog broadcast RF signals into baseband signals. 24, a base band processor 25 for demodulating the digital and analog broadcast signals converted into a base bend signal, and a method of providing a broadcast signal by processing the demodulated digital and analog broadcast signals by the base band processor 25; And an application processor 26 for outputting an image, audio, and data signal and controlling the operations of the RF processor 24 and the baseband processor 25. .

Hereinafter, the operation and effect of the present invention will be described in more detail with reference to FIGS. 1 and 2.

As shown in FIG. 1, the present invention may start from step S21 of receiving a digital broadcast. The digital broadcast RF signal received from the antenna 21 is separated into one path by the signal separator 22 and filtered to pass only a desired frequency band by the band pass filter 23a and then input to the RF processor 24. . The RF processor 24 down-converts the input digital broadcast RF signal and outputs it as a baseband signal, which is input to the baseband processor 25. The baseband processor 25 demodulates the down-converted digital broadcast signal according to the modulation scheme used for transmission. The demodulated digital broadcast signal is input to the application processor 26, and the application processor 26 is a signal suitable for various devices that can be output in a form that can be recognized by a user, that is, a video service signal that can be displayed on a display. It can be output as a voice service signal that can be output to the speaker.

An embodiment of the present invention may further include searching for and storing the channels of the received digital broadcast and the analog broadcast before receiving the digital broadcast (S11). The application processor 26 may search for channels of digital broadcast and analog broadcast that can be received by scanning signals received from the antenna 21 and store the retrieved channel information. The retrieved channel information may be stored in a storage area of the broadcast signal processor 24 or separately in a memory unit (not shown) provided externally. The stored channel information may be referred to so that the same content can be broadcasted at the time of switching between digital broadcasting and analog broadcasting.

Subsequently, an operation (S12) of detecting a received signal strength value RSSI of the digital broadcast signal may be performed. As a specific algorithm for detecting the received signal strength value of the digital broadcast signal, it is disclosed in detail in patent application No. 10-2009-0045895 filed in 2009 by the applicant of the present invention. The reference is implemented by the detection algorithm of the value of each register through the feedback loop of the analog signal and the feedback loop of the signal converted to the baseband, which is characterized by having linearity in real time over the entire reception sensitivity interval. The above description of the received signal strength value detection algorithm is described by reference, and the present invention is not limited to this specific received signal strength value detection algorithm.

Subsequently, a step (S13) of comparing the received signal strength value with a preset threshold value is performed. The received signal strength value detected in the aforementioned step S12 may be compared with a preset threshold while being monitored in real time by the application processor 26. This threshold may be determined as the minimum received signal strength value at which the user can smoothly receive digital broadcasts.

As a result of the comparison of step S13, when the received signal strength value RSSI of the digital broadcast signal is smaller than a preset threshold, it is determined that the digital broadcast reception cannot be performed smoothly, and the analog broadcast signal is received to the user. An analog broadcast may be provided (S14). In this step S14, only the output by the application processor 26 can be stopped by the digital broadcast, and the detection of the received signal strength of the digital broadcast signal can be performed while providing the analog broadcast to the user. In such an embodiment, the application processor 26 may continue to compare the received signal strength value of the digital broadcast signal with the threshold and if the received signal strength value is greater than a preset threshold, receive the digital broadcast signal and send it back to the user. The digital broadcast can be provided.

In another embodiment, the application processor 26 outputs the user recognizable result of monitoring the received signal intensity value of the digital broadcast signal, so that the user can grasp the reception state of the digital broadcast while receiving the analog broadcast. can do. The user may confirm that the digital broadcast is smoothly received while receiving the analog broadcast, and may switch from the analog broadcast to the digital broadcast.

On the other hand, in order to provide continuity of the broadcast content provided to the user, in the step of providing analog broadcast (S14), the application processor 26 the same content as the content that was being provided to the user in the step of providing the digital broadcast (S11) It may provide an analog broadcast including a.

As described above, according to the present invention, when the received signal strength value of the digital broadcast signal is continuously monitored in real time and compared with a preset threshold value, the received signal strength value becomes smaller than the threshold value, that is, the digital broadcast reception is not performed smoothly. If not, it can automatically switch to analog broadcasting and continue to receive the broadcasting service provided without interruption.

In the detailed description of the present invention, specific embodiments have been described, but various modifications may be made without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined by the following claims and their equivalents.

1 is a flowchart illustrating a digital broadcast providing method according to an embodiment of the present invention.

2 is a block diagram showing an example of a digital-analog combined broadcast receiver to which a digital broadcast providing method according to an embodiment of the present invention is applied.

* Description of the symbols for the main parts of the drawings *

21: antenna 22: signal separation unit

23a, 23b: band pass filter part 24: RF processing part

25: baseband processor 26: application processor

Claims (4)

Receiving a digital broadcast signal to provide digital broadcast; Detecting a received signal strength value (RSSI) of the digital broadcast signal; A first comparing step of comparing the received signal strength value with a preset threshold value; And Receiving an analog broadcast signal and providing an analog broadcast when the received signal strength value is smaller than a preset threshold; Digital broadcast providing method comprising a. The method of claim 1, wherein after providing the analog broadcast, A second comparing step of comparing the received signal strength value of the digital broadcast signal with the threshold value; And And receiving the digital broadcast signal and providing the digital broadcast again when the received signal strength value is greater than a preset threshold. The method of claim 1, wherein the providing of the analog broadcast comprises: And providing an analog broadcast including the same content as the content being provided at the step of providing the digital broadcast. The method of claim 1, And searching for and storing the digital broadcast channel and the analog broadcast channel.
KR1020090068452A 2009-07-27 2009-07-27 Service method of digital broadcasting KR20110011021A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020090068452A KR20110011021A (en) 2009-07-27 2009-07-27 Service method of digital broadcasting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020090068452A KR20110011021A (en) 2009-07-27 2009-07-27 Service method of digital broadcasting

Publications (1)

Publication Number Publication Date
KR20110011021A true KR20110011021A (en) 2011-02-08

Family

ID=43771292

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020090068452A KR20110011021A (en) 2009-07-27 2009-07-27 Service method of digital broadcasting

Country Status (1)

Country Link
KR (1) KR20110011021A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210024381A (en) * 2019-08-23 2021-03-05 부산대학교 산학협력단 Apparatus for no-delay playback of ar/vr contents based on wireless signal strength and method for no-delay playback of ar/vr contents thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210024381A (en) * 2019-08-23 2021-03-05 부산대학교 산학협력단 Apparatus for no-delay playback of ar/vr contents based on wireless signal strength and method for no-delay playback of ar/vr contents thereof

Similar Documents

Publication Publication Date Title
US20050118984A1 (en) Receiving, displaying, and recording apparatus
JP2004320406A (en) Automatic channel selecting method for ground digital broadcasting
US8035743B2 (en) Method for processing data in a terminal with digital broadcasting receiver
US10063906B2 (en) Method and system for multi-path video and network channels
JP2010114777A (en) Broadcast receiving circuit and broadcast receiver
KR20110011021A (en) Service method of digital broadcasting
EP1926306A1 (en) Method and apparatus for automatic fine tuning based on sync detection
JP2010028460A (en) Terrestrial digital broadcast receiving device and its channel selection method
JP2008527938A (en) Program diversity
JP2006074827A (en) Receiving apparatus and receiving method thereof
JP2008136069A (en) Automatic channel switching system
JP4745211B2 (en) Digital broadcast receiving system
JP4309870B2 (en) Digital broadcast receiver
JP2012205224A (en) Digital broadcast receiver
JP2010220208A (en) Broadcast receiving apparatus, and broadcast receiving method
JP2012169902A (en) On-vehicle digital terrestrial broadcasting receiver
KR20060111779A (en) Method for auto tunning best channel among same broadcast
JP2009135687A (en) Terrestrial digital broadcast receiving device and portable terminal device mounting it
JP4349355B2 (en) TV receiver
US8891683B2 (en) IBOC broadcast receiver
JP2001339665A (en) Shared receiver
KR100648339B1 (en) Gain control apparatus and method in the digital television
JP2007251604A (en) Digital broadcasting receiver
JP2010028430A (en) Digital broadcast receiver
JP2006186516A (en) Television receiver

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E601 Decision to refuse application