JP2010171822A - System and method for receiving broadcast - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a system for automatically switching to the best channel without using a positioning means even when viewing or listening a broadcast during a travel an area in which a broadcast transmit channel changes. <P>SOLUTION: The broadcast receiving system includes a first step for a broadcast receiver to receive riding information stored in a memory of an IC ride ticket, a second step of sending the riding information received by the broadcast receiver to a channel switch information provision server, and a third step of extracting the best channel switch information for each area-time from the channel switch information stored in the memory of the channel switch information provision server based on the riding information received by the channel switch information provision server and to send it to the broadcast receiver. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a broadcast receiving system and a broadcast receiving method. In particular, the present invention relates to a broadcast receiving system and a broadcast receiving method suitable for watching and listening to a broadcast while moving for a long time on a vehicle such as a bus or a train.

  When watching and listening to a broadcast while moving, the broadcast transmission channel differs depending on the region. That is, in the current television broadcast (radio broadcast), the channel (frequency) used differs depending on the region even if it is the same broadcast station / affiliated station. As a result, in a broadcast receiver that is mounted on a car or a mobile phone and can receive a broadcast while moving, if it moves out of the range that the broadcast wave reaches because it moves while receiving a broadcast wave of a certain channel, You will not be able to watch or listen to the broadcast on the channel you have been receiving. Therefore, in order to continue to watch / listen to a program that is being viewed / listened even after moving, it is necessary to switch to a channel in the destination area that is broadcasting the same program as the program that was being viewed / listened up to then. is there. That is, in order to continue to watch and listen to the same broadcast, it is necessary to re-receive it according to the channel in the destination area.

  Now, as a method of switching channels in accordance with the movement of the receiver, means for measuring position information for the purpose of enabling the user to watch the same program continuously without operating the channel. By using the television broadcasting station channel information stored in the storage device of the navigation system equipped with the above, it is possible to automatically switch to the channel of the same broadcasting station or the affiliated broadcasting station so that the program can be continued continuously. There has been proposed a mobile television receiver (Japanese Patent Laid-Open No. 7-284030) characterized in that it can be seen through.

  In addition, the navigation system and the TV receiver are connected, and the means and map data for detecting the position of the own vehicle are provided for the purpose of shortening the time and effort for searching for a desired broadcast when the area changes as the vehicle travels. A navigation system having a means for storing; a front end of a TV tuner having means for performing channel search and outputting signal strength data of a receiving station; and a VITS signal included in the video signal of the signal received at the front end. A search circuit for searching for the same broadcast by comparing a test signal with a reference signal, a memory circuit for storing the channel number of the receiving station, signal strength, VITS test signal waveform data for each area of the navigation system, and TV viewing When running without doing, let the front end perform a channel search, The signal strength is monitored for each signal, and when the signal strength is equal to or higher than a predetermined level, for each area on the navigation system, the channel number of the receiving station, the signal strength, and the test signal waveform are stored in the memory circuit, When running while watching TV, the signal strength of the receiving station is monitored, and if the signal strength falls below a predetermined level, the current running on the navigation system is determined from the data stored in the memory circuit. If the station has an electric field strength equal to or higher than a predetermined level, the search circuit determines whether the station has the same test signal waveform as the broadcast being received. And an automatic tuning TV tuner characterized by comprising a control unit for controlling the front end and switching to the station (Japanese Patent Laid-Open No. 8-140004) It is.

  In addition, when a receiving device mounted on a moving body such as an automobile is receiving a broadcast while moving, the transmission station of the signal to be received is switched, so that the receivable broadcast signal and broadcast frequency change one after another. Also, for the purpose of enabling continuous viewing of a program, in a receiving device that receives a transmission signal in which a plurality of signals are multiplexed, multiple signal separation means for separating a desired signal from the multiplexed transmission signal; A signal demodulating means for demodulating the signal separated by the multiple signal separating means, a data separating means for separating arbitrary data from the data output as a demodulation result of the signal demodulating means, and a position for detecting the position of the receiving device A channel selection information storage unit for storing channel selection information representing correspondence between information detection unit, control unit for controlling each unit, and channel of a signal to be separated according to the position of the receiving device And the control means acquires the channel selection information from the data separation means and stores it in the channel selection information storage means, while the control means includes the position information output by the position information detection means and A receiving apparatus has been proposed (Japanese Patent Laid-Open No. 2001-53635) characterized in that the channel to be separated is determined by the multiplexed signal separation means based on the tuning information stored in the tuning information storage means. .

  Another object of the present invention is to provide a broadcast receiving system comprising a portable broadcast receiving terminal and a reception information generating device for the purpose of facilitating channel switching at the time of mobile reception by means of public transportation such as a train. The broadcast receiving terminal includes a first storage unit that stores reception information necessary for continuous reception during movement, a clock unit that measures a current time, and the reception stored in the first storage unit A channel determination unit that compares information with the current time measured by the clock unit to determine a receivable channel, and the reception information generation device includes a transportation unit selection unit that selects a transportation unit. , Operation information extraction means for extracting operation information of the means of transportation selected by the means of transportation means from the Internet, and a broadcast area information storage means for storing broadcast area information of the broadcasting station And the reception information generation means for generating the reception information by comparing the operation information extracted by the operation information extraction means with the broadcast area information stored in the broadcast area information storage means, and the reception There is a broadcast reception system including a second storage unit that stores the reception information generated by the information generation unit (Japanese Patent Laid-Open No. 2007-228563).

  In addition, for the purpose of automatically identifying the destination where the user is going to move and obtaining a channel list assigned to the area including the destination, the television broadcast transmitted on a certain channel is transmitted. A portable terminal device including a television receiving unit for receiving, an IC chip that can be used for various services, and a storage unit that stores information on a list of channels used for television broadcast transmission in a predetermined area. The television receiver is used for television broadcast transmission in an area including the destination based on information about the destination to be specified for using a certain service recorded in the IC chip. A mobile terminal that acquires channel list information from the storage unit and receives a television broadcast transmitted on the acquired channel. Device is (JP 2008-28725).

Japanese Patent Laid-Open No. 7-284030 JP-A-8-140004 JP 2001-53635 A JP 2007-228563 A JP 2008-28725 A

  By the way, in the techniques proposed in Patent Documents 1, 2, and 3, for example, position information is required. For this reason, it is necessary to always operate the positioning means. Also, map information for the broadcast area is required. Therefore, power consumption is increased, the required memory amount is increased, and the portability feature is reduced.

  The technology proposed in Patent Document 4 is based on the operation information of the boarding transportation means taken from the operation information providing server of public transportation means via the Internet and the broadcast area information stored in the broadcast area information storage unit. First, reception information necessary for continuously receiving a broadcast program during movement is generated by a reception information generation device, and the generated reception information is stored in a storage means (memory card), and the storage means (memory The received information stored in the card) is to be used. Therefore, in the case of a sudden business trip, the preparation as described above is almost impossible and cannot be used. Moreover, in today's busy days, the preparation work required by Patent Document 4 is troublesome and cannot be used at all.

  The technique proposed in Patent Document 5 is a destination of a contactless IC card (IC chip that can be used for various services) in which destination information such as a departure point / destination and time information such as departure time / arrival time are recorded. The information is transmitted to the server, and the server selects a receivable channel list for each region code from the table in which the region code and the channel list information are associated with each other based on the destination information, and transmits this to the portable terminal device. Therefore, the troublesomeness as in Patent Document 4 is eliminated. However, this proposed technology only has channel information in areas such as Osaka, Nagoya, and Tokyo. In other words, it is only necessary to know the number of channels in Osaka, the number of channels in Nagoya, and the number of channels in Tokyo. However, for example, if you are on the Shinkansen, the number of people who are on board is often unknown. You can only guess where you are running by looking at the clock and what time it is. In this case, even if the number of channels in the area is known, the work of matching the number of channels is troublesome. In addition, even if it is determined that there is a rough hit, it is difficult to make an accurate determination as to whether or not a channel switching area has been entered.

  Therefore, the problem to be solved by the present invention is that, even when watching and listening to the broadcast while moving in an area where the broadcast transmission channel changes, it is not necessary to always move the positioning means, and power consumption is low, and Since there is no need to hold map information, the memory used is small, and further, switching to the optimum channel is automatically performed to provide a technique that greatly improves the convenience for the user.

The above issues are
A broadcast receiving system comprising a channel switching information providing server and a broadcast receiver connected to the channel switching information providing server,
The channel switching information providing server
A server storage unit storing channel switching information;
A server control unit that extracts and transmits the optimum channel switching information for each region / time based on the boarding information received by the channel switching information providing server from the channel switching information stored in the server storage unit; Comprising
Broadcast receiver
A boarding information receiving unit for receiving boarding information stored in the storage unit of the IC ticket;
A channel switching information holding unit;
The boarding information receiving unit receives the boarding information received from the channel switching information providing server, and receives the optimum channel switching information for each region / time based on the boarding information from the channel switching information providing server. The optimal channel switching information for each region / time is stored in the channel switching information holding unit, and the optimal channel switching information for each stored region / time is read for each time so that the same broadcast receiver can receive the same channel switching information. The present invention is solved by a broadcast receiving system comprising a receiver control unit that automatically switches a channel to a broadcast channel.

A broadcast receiving method in a broadcast receiving system comprising a channel switching information providing server and a broadcast receiver connected to the channel switching information providing server,
A first step in which the broadcast receiver receives boarding information stored in an IC ticket storage unit;
A second step of transmitting the boarding information received by the broadcast receiver to the channel switching information providing server;
Based on the boarding information received by the channel switching information providing server, the optimum channel switching information for each region / time is extracted from the channel switching information stored in the storage unit of the channel switching information providing server, A third step of transmitting to the broadcast receiver;
A fourth step of storing optimum channel switching information for each region / time received by the broadcast receiver in its own channel switching information holding unit;
The broadcast receiver automatically reads out the optimum channel switching information for each region and time stored in its own channel switching information holding unit at each time, and automatically switches the channel to the channel that performs the same broadcast by the broadcast receiver. The broadcast receiving method is characterized by comprising a fifth step performed automatically.

  Even when watching and listening to the broadcast while moving in an area where the broadcast transmission channel changes, it is not necessary to always move the positioning means, so it consumes less power and does not need to hold map information. In addition, since the switching to the optimum channel is automatically performed, the convenience for the user is very high.

Block diagram of a broadcast receiver in the broadcast receiving system of the present invention Schematic of the broadcast receiving method of the present invention Example of stored information in IC tickets Channel switching information example Channel switching information example Channel switching information example Channel switching information example

  The present invention is a broadcast receiving system. This broadcast receiving system includes a channel switching information providing server and a broadcast receiver connected to the channel switching information providing server. The channel switching information providing server includes a server storage unit that stores channel switching information. In addition, the server control for extracting and transmitting the optimum channel switching information for each region / time based on the boarding information received by the channel switching information providing server from the channel switching information stored in the server storage unit. Part. In addition, the optimal channel switching information for each region and time is: ○ Year ○○ Month ○○○ Day ○○○○ Hour ○○○○○ Min. Via ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● minutes ● ● ● ● ● ● □ □ □ □ □ In the second, based on the boarding information that you get off at the station The channel switching information at each time at the place (× point, XX point,...) Where the channel is switched. The broadcast receiver includes a boarding information receiving unit that receives boarding information stored in the storage unit of the IC ticket. In addition, a channel switching information holding unit is provided. Further, the boarding information received by the boarding information receiving unit is transmitted to the channel switching information providing server, and the optimum channel switching information is received for each region / time based on the boarding information from the channel switching information providing server, The broadcast switching receiver stores optimal channel switching information for each received region / time in the channel switching information holding unit, and reads the optimal channel switching information for each stored region / time for each time. And a receiver control unit that automatically switches the channel to the same broadcast channel.

  Another aspect of the present invention is a broadcast receiving method. This broadcast receiving method is a broadcast receiving method in a broadcast receiving system including a channel switching information providing server and a broadcast receiver connected to the channel switching information providing server. In particular, this is a broadcast receiving method in the broadcast receiving system. The broadcast receiver includes a first step of receiving boarding information stored in the storage unit of the IC boarding ticket. In addition, a second step of transmitting the boarding information received by the broadcast receiver to the channel switching information providing server is provided. In addition, the channel switching information providing server extracts optimum channel switching information for each region / time from the channel switching information stored in the storage unit of the channel switching information server based on the received boarding information. And a third step of transmitting to the broadcast receiver. In addition, a fourth step of storing optimum channel switching information for each region / time received by the broadcast receiver in its own channel switching information holding unit is provided. In addition, the broadcast receiver reads out the optimum channel switching information for each region / time stored in its own channel switching information holding unit at each time, and switches the channel to a channel for performing the same broadcast by the broadcast receiver. The fifth step of automatically performing is included.

  This will be described in more detail below.

  FIG. 1 is a block diagram of a broadcast receiver according to the present invention.

  Reference numeral 10 denotes a broadcast receiver (terminal) according to the present invention. Reference numeral 11 denotes a broadcast receiving unit. The broadcast receiving unit 11 is a part that receives a broadcast signal. Then, a signal having a frequency corresponding to the channel designated by the control unit 12 is received and demodulated. The control unit 12 performs reception control, decoding of received data (video, audio, etc.), display control, and the like. That is, the control unit 12 generally performs control processing in the broadcast receiver 10. The received data output from the broadcast receiving unit 11 is decoded into video / audio by the control unit 12 and displayed on the display unit 14 or presented to the audio presentation unit 15. Reference numeral 13 denotes a key input unit. The key input unit 13 is a part that receives an instruction regarding broadcast reception from the user such as channel setting. Information input from the key input unit 13 is input to the control unit 12 and used for reception control and display control. Reference numeral 16 denotes a communication unit (wireless communication unit). The wireless communication unit 16 is a part that exchanges information by wireless communication. Reference numeral 17 denotes an IC boarding ticket (IC chip: IC card). This IC ticket 17 stores boarding information (also referred to as boarding ticket information) for transportation such as trains and buses. Although not shown, the broadcast receiver 10 has a receiving unit that can receive boarding information (ID information of a train to be boarded) stored in the IC boarding ticket 17 in a contact (or non-contact) manner. ing. The boarding information received by the receiving unit is output to the control unit 12. Reference numeral 18 denotes a channel switching information holding unit. The channel switching information holding unit 18 holds channel information for switching the frequency (channel) of the broadcast signal received by the broadcast receiving unit 11.

  Channel information for switching the frequency (channel) of a broadcast signal received by the broadcast receiving unit 11 is received from a channel switching information providing server (shown in FIG. 2) not shown in FIG. That is, the channel switching information providing server has a server storage unit (not shown) that stores channel switching information. Further, the channel switching information providing server is based on the boarding information (boarding information stored in the IC ticket 17) received from the broadcast receiver 10 among the channel switching information stored in the server storage unit. In addition, a server control unit (not shown) that extracts optimum channel switching information for each region / time and transmits the information to the broadcast receiver 10 is provided.

  Next, a broadcast receiving method (processing flow) according to the present invention will be described with reference to FIG.

  First, the information obtained from the IC ticket 17 when the broadcast receiver 10 is activated is referred to.

  The IC boarding ticket 17 stores information such as “boarding date”, “departure time”, “train name”, “use section”, “boarding / getting off”, etc.). An example of information on the IC ticket 17 is shown in FIG.

  If the departure time of any boarding in the ticket information stored in the IC board 17 is close to the date and time when the broadcast receiver 10 is activated, or any boarding state, the corresponding boarding Get channel switching information that can be used on trains with tickets.

  For example, when the broadcast receiver 10 is activated at 10:30 on December 10, 2008 and the IC ticket information is in the state shown in FIG. Since the boarding ticket 1 is in the boarding state, channel switching information that can be used on the train (Nozomi 54) of this boarding ticket is acquired. That is, the control unit 12 accesses the channel switching information providing server via the wireless communication unit 16 and acquires channel switching information from the channel switching information providing server. That is, the control unit 12 transmits the ticket information obtained from the IC ticket 17 to the channel switching information providing server. The channel switching information providing server that has received the ticket information specifies the operation information of the corresponding train from the received ticket information, and the channel information stored in the storage unit based on the region / time through which the train passes. The channel switching information that is optimal for viewing and listening on the corresponding train is created for each region and time. And it transmits toward the broadcast receiver 10. The control unit 12 of the broadcast receiver 10 causes the wireless communication unit 16 to receive the optimum channel switching information created by the channel switching information providing server and causes the channel switching information holding unit 18 to hold it. Thereby, the broadcast receiver 10 holds the channel switching information for the use section of the corresponding (ride) train.

  An example of this channel switching information is shown in FIG.

  The broadcast receiver 10 that has received the optimum channel switching information from the channel switching information providing server performs channel switching using the optimum channel switching information. For example, in the case of the channel switching information in FIG. 4, the channel switching from 27CH to 19CH being viewed is performed at 10:45. Switching is not performed for other channels. Thereafter, channel switching from 19CH to 24CH is performed at 11:00. At 11:25, channel switching from 24CH to 20CH is performed.

  In the above description, the selection condition of the IC ticket 17 (determining which vehicle to ride) is determined when the departure time is close to the date and time when the broadcast receiver 10 is activated, or when it is in the boarding state. However, it was assumed that the departure time and the proximity of the broadcast receiver activation date and time were set at a time such as one hour or less. This is to make it possible to cope with changes in train operation information such as train delay on the day. However, considering the convenience of the user, the user may be able to set the date, or the date may be set in the form of the boarding date (or the day before the boarding date) without using the boarding time. In addition, the user himself / herself may be able to select which ticket to obtain channel switching information for.

  The acquisition timing of the channel switching information is set when the broadcast receiver 10 is activated. However, the channel switching information may be acquired before the broadcast receiver 10 is activated depending on the date and time information of the ticket and the user selection.

  In addition, in order to respond to changes in operation information such as when the train is delayed, it is possible to update the time information by obtaining the channel switching information from the channel switching information providing server again by the user operation during broadcast viewing / listening. May be. Further, the broadcast receiver 10 may be configured to perform time correction by user setting. It is also conceivable that the update information is automatically transmitted from the channel switching information providing server to the broadcast receiver 10.

  The IC ticket 17 is not limited to a ticket related to an individual train, but may be in the form of a commuter pass. In the case of a form such as a commuter pass, use section information exists, but since there is no information on the boarding date and time, the train (time) cannot be specified. However, in addition to the basic information possessed by the IC ticket (commuter pass) 17, if information that can narrow down the train such as information on the time of passing the ticket gate is written, such information can be switched over to the channel. What is necessary is just to transmit to an information provision server. In this way, the channel switching information providing server can transmit the channel switching information generated based on the train operation information after the ticket gate passage time to the broadcast receiver 10. When the IC ticket 17 is in the form of a commuter pass, the channel switching information is the same every time, so only the time information may be updated in accordance with the boarding train.

  As shown in FIG. 5, if the channel switching information is added with information identifying a broadcast such as network_id in the case of digital broadcasting, the broadcast receiver 10 side can confirm the match with the broadcast of the channel before and after the switching, Channel switching to the same broadcast can be performed more reliably. Further, as shown in FIG. 6, series-related information and broadcast station name information may be added. The additional information is not limited to this.

  In addition, as shown in FIG. 7, the information of the switching time and the information of the switching destination area are set as channel switching information, and the channel to be actually selected uses the channel information for each area stored in the broadcast receiver 10 in advance. Also good.

  When viewing / listening is interrupted after acquiring the channel switching information, or when channel switching information is acquired before the broadcast receiver 10 is started, the channel that was viewed / listened when viewing / listening was stopped may be received. Even if you change the channel according to the preset channel list, you are moving to a different area than when watching / listening stops or when the channel list preset, and the channel being selected is not broadcasting, There is a case where a broadcast different from the target broadcast is transmitted. For example, in the state where the channel switching information of FIG. 4 has already been acquired, when the broadcast receiver 10 is activated and viewing is started at 11:15, the broadcast is not already transmitted on 27CH. Even at 11:25, there is no 27CH information. Even if it exists, another broadcast may be received.

  In such a case, if the user operates the broadcast receiver 10 by himself / herself and activates a search function for searching for a channel in order up to a channel where some broadcast is received, Channel switching is automatically performed based on the channel switching information. This method is not convenient for the user. Therefore, it is preferable to follow the channel by tracing the time of the channel switching information. Specifically, for each preset channel, time and channel information when viewing / listening is stopped are stored, and it is preferable to correspond to channel switching from that time to the current time. For example, in the state where the channel information of FIG. 4 has already been acquired, if channel 27 is selected at 11:15, the channel is not changed at 10:45, 11:00, so from 27CH to 19CH, From 19CH to 24CH, 24CH is selected.

  In the case of channel switching information including sequence information as shown in FIG. 6, channel switching can be performed with simpler processing. Channel switching may be performed according to the past channel switching information closest to the current time that matches the channel information of the broadcasting station at the time of viewing / listening stop or the broadcasting station selected in the preset channel list. For example, in the channel switching information of FIG. 6, when the broadcast station with the sequence ID = 0 is selected at 11:15, the switching information to 24CH exists in the channel switching information at 11:00. , 24CH may be selected.

  In the above description, only the example in which the channel switching is automatically switched according to the channel switching information is described. However, the channel switching is not performed automatically, but is switched when a switching instruction is given from the user, or the switching destination channel is It is also possible to present the fact on the broadcast receiver 10 and to switch when the user selects switching.

10 Broadcast receiver (terminal)
DESCRIPTION OF SYMBOLS 11 Broadcast receiving part 12 Control part 13 Key input part 14 Display part 15 Voice presentation part 16 Communication part 17 IC boarding ticket 18 Channel switching information holding part

Claims (2)

A broadcast receiving system comprising a channel switching information providing server and a broadcast receiver connected to the channel switching information providing server,
The channel switching information providing server
A server storage unit storing channel switching information;
A server control unit that extracts and transmits the optimum channel switching information for each region / time based on the boarding information received by the channel switching information providing server from the channel switching information stored in the server storage unit; Comprising
Broadcast receiver
A boarding information receiving unit for receiving boarding information stored in the storage unit of the IC ticket;
A channel switching information holding unit;
The boarding information receiving unit receives the boarding information received from the channel switching information providing server, and receives the optimum channel switching information for each region / time based on the boarding information from the channel switching information providing server. The optimal channel switching information for each region / time is stored in the channel switching information holding unit, and the optimal channel switching information for each stored region / time is read for each time so that the same broadcast receiver can receive the same channel switching information. A broadcast receiving system comprising: a receiver control unit that automatically switches a channel to a broadcast channel. A broadcast receiving method in a broadcast receiving system comprising a channel switching information providing server and a broadcast receiver connected to the channel switching information providing server,
A first step in which the broadcast receiver receives boarding information stored in an IC ticket storage unit;
A second step of transmitting the boarding information received by the broadcast receiver to the channel switching information providing server;
Based on the boarding information received by the channel switching information providing server, the optimum channel switching information for each region / time is extracted from the channel switching information stored in the storage unit of the channel switching information providing server, A third step of transmitting to the broadcast receiver;
A fourth step of storing optimum channel switching information for each region / time received by the broadcast receiver in its own channel switching information holding unit;
The broadcast receiver automatically reads out the optimum channel switching information for each region and time stored in its own channel switching information holding unit at each time, and automatically switches the channel to the channel that performs the same broadcast by the broadcast receiver. A broadcast receiving method comprising: a fifth step performed automatically.

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