KR20090056652A - Broadcasting receiving apparatus and method for seamless receiving in mfn broadcasting network - Google Patents

Abstract

A device and a method for receiving a broadcasting broadcast service continuously in an MFN(Multi Frequency Network) broadcasting network are provided to receive the continuous broadcasting service stably during moving by reducing a channel search time based on channel information classified into each town. A position information receiver(20) receives location information. A channel information storage(50) comprises the location ready for receiving channel information. A broadcasting receiver(70) obtains available channel corresponding to the location information from the channel information storage and receives a broadcast service through the obtained.

Description

Broadcasting Receiving Apparatus and Method for Seamless Receiving in MFC Broadcasting Network

The present invention relates to a broadcast receiving apparatus and method in an MFN broadcast network, and to a broadcast receiving apparatus and method for continuous broadcast service reception.

The present invention is derived from research conducted as part of the IT growth engine technology development project of the Ministry of Information and Communication and the Ministry of Information and Communication Research and Development. ].

When a broadcast receiver receives a broadcast service while moving in a multi frequency network (MFN) broadcasting network, the broadcast signal reception field may be weak and thus the broadcast service may not be received. In addition, since the MFN national broadcasting network has a different broadcasting channel for the same broadcasting program, it is difficult to receive continuous broadcasting service when crossing the boundary of the region.

In this case, the broadcast receiver converts a channel by finding an appropriate channel while checking all electric field strengths of other channels broadcasting the same service. However, this method has a high possibility of service interruption due to channel switching. In addition, even in a simple shadow area in which no other channel having the same service exists, by wasting time searching for a channel broadcasting the same service, an unreceived state may be further maintained.

Accordingly, there is a need for a broadcast receiving apparatus and method capable of stably receiving continuous broadcast services on the go.

The problem to be solved by the present invention is a broadcast receiving apparatus that can reliably receive continuous broadcast services on the go, by reducing the time wasted during channel search by tabulating the information of the channels that can be received by each administration in the MFN broadcasting network And to provide a method.

According to an aspect of the present invention, there is provided a broadcast receiving apparatus for receiving a continuous broadcast service in an MFN broadcasting network, comprising: a location information receiver for receiving location information, a channel information storage unit including receivable channel information for each location; And a broadcast receiving unit obtaining a receivable channel corresponding to the location information from the channel information storage unit and receiving a broadcast service through the obtained receivable channel.

According to an aspect of the present invention, there is provided a broadcast receiving method for continuous broadcast service reception in an MFN broadcasting network, the method comprising: receiving a broadcast service on an arbitrary reception channel and checking a reception field strength of the reception channel; And when the received electric field strength of the reception channel is lower than a predetermined value, acquiring a receivable channel corresponding to the location information of the broadcast reception device from previously received receivable channel information for each location, and broadcasting on the obtained reception channel. Receiving a service.

According to the broadcast receiving apparatus and method for continuous broadcast service reception in the MFN broadcasting network according to the present invention, by continuously tabulating the information of the channels that can be received in each zone, the time spent during channel search is reduced, so that continuous broadcasting can be performed on the move. The service can be provided stably.

Hereinafter, a broadcast receiving apparatus and method for continuous broadcast service reception in an MFN broadcasting network according to the present invention will be described in detail with reference to the accompanying drawings.

The basic principle of the present invention is to reduce the waste of time during channel searching by tabulating the information of channels that can be received by administrative group in the MFN broadcasting network, so that the broadcast receiving apparatus can stably receive continuous broadcasting services while moving. will be.

1 is a block diagram showing a schematic configuration of a broadcast receiving apparatus and a connection structure with a communication network according to the present invention.

Referring to FIG. 1, the broadcast receiving apparatus for receiving continuous broadcast service according to the present invention includes an RF tuner 10, a location information receiving unit 20, an administrative block generating unit 30, an administrative block code generating unit 40, The channel information storage unit 50 for each administration group, the channel information update control unit 60, and the broadcast receiving unit 70.

The RF tuner unit 10 selectively outputs broadcast data of a frequency band corresponding to desired reception channel information from the received broadcast data. Receive channel information is received from the broadcast receiving unit 70. Since the broadcast receiving apparatus receives broadcast data while moving in the region, the reception channel information may be provided at any time according to the channel state of the region.

The location information receiver 20 receives location information such as current latitude and longitude information of the broadcast receiver from a satellite.

The stroke building unit 30 receives the current position information of the broadcast receiver from the position information receiving unit 20 and outputs the stroke structure information corresponding to the current position information.

The administration building code generation unit 40 receives the administration building information from the administration building generation unit 30, and converts the administration building information into the administration building code.

The channel information storage unit 50 for each administration includes receptionable channel information for each position. In detail, the channel information storage unit 50 for each administration unit stores the reception-capable channel information for each administration unit as a table, and the channel information storage unit 50 for each administration unit may be a nonvolatile memory.

2 is a diagram illustrating a configuration of a reception group channel information table for each administration group.

Referring to Fig. 2, the information table is composed of the receptionable channel information of each stroke, which is designated by the stroke code value. Here, the administrative code is a binary code, and the national code can be represented by 12 bits, for example. Receivable channel information is encoded in binary form.

In order to obtain the reception channel information of the administration hall from the information table, it is possible to access the administration hall code corresponding to the administration hall in which the broadcast reception apparatus is located as an address. This information table can be stored with a small memory capacity.

Looking at the reception channel information for each administrative group, it can be seen that the receiving channel broadcasting the same service is different for each administrative group.

For example, if the same service of MBC is being broadcast in administration dong 1 and administration dong 2, but the broadcasting receiver is located in administration dong 1, the broadcast service can be received through channel 2. However, in case of located in Administration Building 2, the broadcast service can be received through Channel 3. Therefore, when the broadcast receiving apparatus receiving the MBC broadcast service moves from the administration dong 1 to the administration dong 2, in order to receive the broadcast service continuously and stably, it is necessary to change from the reception channel of the channel 2 to the reception channel of the channel 3.

If there is no receptionable channel information for each administration, every position change requires scanning all of the receptionable channels that can receive the selected broadcast service, and it takes a lot of time to scan. However, by using the receptionable channel information table for each administrative group, it is not possible to waste time for channel search. As a result, the broadcast receiving apparatus can quickly change to the receivable channel so that the broadcast receiving apparatus can be provided with continuous broadcast service.

Subsequently, referring to FIG. 1, the channel information update control unit 60 periodically receives the administration-specific receiveable channel information updated through the communication network from the administration-specific channel information server 80. For example, it can be provided every week or month. In addition, by requesting an update to the administrative unit-specific channel information server 80, if necessary, it is possible to receive the updated administrative unit-receivable channel.

The channel information update control unit 60 transmits the updated location-receivable channel information for each administration location to the channel information storage unit 50 for each administration, thereby updating the administration reception-receivable channel information for the administration-specific channel information storage unit 50. .

The broadcast receiving unit 70 receives broadcast data from the RF tuner unit 10. The broadcast receiver 70 checks the reception field strength of the current reception channel. Subsequently, when it is determined that the broadcast receiver is lower than a predetermined value, the broadcast receiver obtains a receiveable channel corresponding to the current location information from the channel information storage unit 50 for each administration, and transfers the obtained receiveable channel to the RF tuner 10. A broadcast service is provided through a new receivable channel.

The broadcast receiving apparatus according to the present invention configures and manages receiveable channel information for each location in a table, so that when a broadcast channel traverses a boundary of another region, the search time of the receiveable channel can be reduced as much as possible. Thus, continuous broadcast service can be provided.

3 is a flowchart of a broadcast receiving method for continuous broadcast service reception according to the present invention.

Hereinafter, a description will be given of a method in which a broadcast receiving apparatus can receive continuous broadcast data even when a receivable channel moves between different regions.

Referring to FIG. 3, first, a reception field strength of a reception channel of a broadcast reception device receiving a broadcast service is checked (S10 and S20).

While receiving the broadcast service, the broadcast reception device periodically checks the reception field strength of the current reception channel receiving the broadcast service.

If it is determined that the received electric field strength of the current reception channel is lower than the predetermined value, the broadcast reception device cannot stably receive the broadcast service, and thus starts searching for channel information that can be received at the current location.

Subsequently, location information of the broadcast reception device is received (S30).

The location information receiver 20 receives current location information of the broadcast receiver from a satellite. Here, although the receiving step of the position information is mentioned after the reception electric field strength check, the present invention is not limited thereto and may be periodically received according to a setting.

Thereafter, the stroke building unit 30 receives the current position information of the broadcast receiving apparatus from the position information receiving unit 20 and outputs the stroke structure information corresponding to the current position information.

The administration code generation unit 40 converts the administration building information into the administration building code, and outputs the administration building code to the broadcast receiving unit 70.

Subsequently, a receiveable channel is obtained (S40).

The broadcast receiving unit 70 obtains a receivable channel for the current position from the channel information storage unit 50 for each administrative group by using the administrative identification code corresponding to the current position.

Subsequently, a broadcast service is received through the acquired receiveable channel (S50).

The broadcast receiving unit 70 transmits the obtained receiveable channel to the RF tuner unit 10 and receives a broadcast service through the obtained receiveable channel. Accordingly, the broadcast receiving apparatus can continuously receive a broadcast service by changing a channel having a weak electric field to a receiveable channel capable of stably providing a service.

In the broadcast receiving apparatus according to the present invention, when the MFN national broadcasting network broadcast service is received while moving, the broadcast service can be continuously received by reducing the disconnection as much as possible without using a dual tuner. In addition, the terminal with the existing traffic navigation function can obtain the same effect only by upgrading the software.

In the MFN broadcasting network according to the present invention, a broadcast receiving apparatus and method may be implemented in a program instruction form that may be executed by various computer means, and may be recorded in a computer readable medium. The computer readable medium may include program instructions, data files, data structures, etc. alone or in combination. Program instructions recorded on the media may be those specially designed and constructed for the purposes of the present invention, or they may be of the kind well-known and available to those having skill in the computer software arts. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks, and magnetic tape, optical media such as CD-ROMs, DVDs, and magnetic disks, such as floppy disks. Magneto-optical media, and hardware devices specifically configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like. The medium may be a transmission medium such as an optical or metal wire, a waveguide, or the like including a carrier wave for transmitting a signal specifying a program command, a data structure, or the like. Examples of program instructions include not only machine code generated by a compiler, but also high-level language code that can be executed by a computer using an interpreter or the like. The hardware device described above may be configured to operate as one or more software modules to perform the operations of the present invention, and vice versa.

As described above, the present invention has been described by way of limited embodiments and drawings, but the present invention is not limited to the above embodiments, and those skilled in the art to which the present invention pertains various modifications and variations from such descriptions. This is possible.

Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined not only by the claims below but also by the equivalents of the claims.

1 is a block diagram showing a schematic configuration of a broadcast receiving apparatus and a connection structure with a communication network according to the present invention.

2 is a diagram illustrating a configuration of a reception group channel information table for each administration group.

3 is a flowchart of a broadcast receiving method for continuous broadcast service reception according to the present invention.

Claims (7)

A location information receiver for receiving location information; A channel information storage unit including receivable channel information for each location; And And a broadcast receiving unit obtaining a receivable channel corresponding to the location information from the channel information storage unit and receiving a broadcast service through the obtained receivable channel. According to claim 1, The reception channel information for each location is broadcast reception device, characterized in that the reception channel information per administration. According to claim 1, And a channel information update control unit providing updated location-receivable channel information to the channel information storage unit, wherein the updated location-receivable channel information is received through a communication network. According to claim 1, And a stroke building generator for outputting stroke information corresponding to the location information, and a stroke code generating unit for converting the stroke information into a stroke code. Receiving a broadcast service through an arbitrary receiving channel; Checking the received electric field strength of the receiving channel; If the reception field strength of the reception channel is lower than a predetermined value, acquiring a reception channel corresponding to the location information of the broadcast reception device from the reception reception channel information for each location stored in advance; And And receiving a broadcast service on the obtained receivable channel. The method of claim 5, The pre-stored receivable channel information for each location is periodically updated through a communication network. The method of claim 5, And converting the location information into a stroke identification code, and obtaining the receivable channel from previously received position-specific channel information stored in advance using the stroke identification code.

Images