JP6172761B2 - Information notification device, information notification method, and information notification program - Google Patents

Description

  The present invention relates to an information notification device, an information notification method, and an information notification program. For example, the present invention relates to an information notification device, an information notification method, and an information notification program that temporarily display information on a display device that displays information.

  In recent years, high-urgency information has been provided to users using public networks or public broadcast waves. One of the most urgent information is the Earthquake Early Warning. However, for example, when a recorded program is viewed using a recorder or the like connected to a television, the user may not be notified of the earthquake early warning that is notified through public broadcasting. Here, there is a HDMI (High Definition Multimedia Interface) standard as a standard for connecting a multimedia device such as a television or an AV amplifier and a source device that gives information including at least one of video information and an audio signal to the multimedia device. HDMI is a registered trademark. In the HDMI standard, a CEC (Consumer Electronics Control) command for performing an operation such as switching an input terminal to be activated in a multimedia device is defined. Therefore, it is conceivable to use input switching using a CEC command as one of methods for presenting highly urgent information to a user when viewing a video using a source device. Thus, Patent Documents 1 and 2 disclose examples of device operation methods using CEC commands.

  In the video receiving system described in Patent Document 1, the video output from the tuner built in the TV is displayed, and the TV channel selection unit is selecting a specific channel, and a specific channel selection request from the user. When an external receiver is equipped with a means to send a specific message to the TV, for example, the user can select the tuner channel built in the TV and the channel of the external receiver connected to the TV. Switch.

  In Patent Document 1, with the above configuration, the user switches the input to the video and audio signals output from the external receiver connected to the display device by the channel selection operation of the display device without switching the input of the display device, Further, by performing the channel selection operation of the external receiver, the channel selection operation of the external receiver can be easily performed.

  In the video / audio system described in Patent Document 2, the output receiving device 30 that outputs video / audio information receives an instruction to the video / audio supply device that is the input source of the video / audio information being output, and the output device is outputting The deciding unit decides the control information for controlling the video / audio supply device corresponding to the instruction received by the instruction receiving unit and the deciding unit for determining any of the video / audio supply devices from which the video / audio information is input A control device including a control information transmission unit that outputs to the video / audio supply device is provided.

  In the video / audio system described in Patent Document 2, the above configuration makes it possible to control the output device without being aware of the video / audio supply device that is the input source of the currently output video / audio information.

JP 2004-304220 A JP 2007-180697 A

  However, after notifying the user of highly urgent information using the command of the CEC command, returning the video input destination to the source device that was originally viewed cannot be realized with the existing CEC command. For this reason, when highly urgent information is displayed, the user has to manually return the input destination of the television to the source device that was originally watching, which is troublesome.

  An aspect of the information notification device according to the present invention is an information notification for switching an information input terminal selected by an information transmission destination device using a CEC (Consumer Electronics Control) command defined by the HDMI (High Definition Multimedia Interface) standard. An information receiving unit that receives notification information to be presented to a user via a network, and requests the information transmission destination to switch the information input terminal using the CEC command, and outputs the notification information An HDMI transmission / reception unit, a control unit that controls the information reception unit, the HDMI transmission / reception unit, and a memory, and the control unit is notified that the notification information has been received from the information reception unit. In response, the HDMI transmission / reception unit is instructed to broadcast the request active source command, and the HD In response to the MI transmitting / receiving unit receiving a first active source command corresponding to the request active source command from another source device, the physical address included in the first active source command is stored in the memory; Instructs the HDMI transmitting / receiving unit to broadcast the second active source command for notifying other source devices that the information input terminal to which the device is connected is switched to the active state. Instructing to output the notification information, and transmitting the special command instructing to transmit the set stream path command from the information transmission destination device to another source device having the physical address stored in the memory. Instruct the transceiver.

  One aspect of the information notification method according to the present invention is connected to an information transmission destination device via an information reception unit that receives notification information to be presented to a user via a network and a cable that conforms to the HDMI (High Definition Multimedia Interface) standard. An HDMI transmission / reception unit, a control unit for controlling the information reception unit, the HDMI transmission / reception unit, and a memory, and a CEC (Consumer Electronics Control) command defined by the HDMI standard is transmitted / received by the HDMI transmission / reception unit. An information notification method in an information notification device for switching the information input terminal selected by the information transmission destination device, the request active source in response to receiving the notification information from the information reception unit Broadcasts a command and sends the request active source command from another source device. A physical address included in the first active source command is stored in the memory in response to receiving the first active source command corresponding to the command, and the information input terminal to which the device is connected is in an active state The second active source command for notifying other source devices to switch to the broadcast is transmitted, the notification information is output to the information transmission destination device, and set in the other source device having the physical address stored in the memory A special command instructing transmission of a stream path command from the information transmission destination device is transmitted.

  An aspect of the information notification program according to the present invention is connected to an information transmission destination device via an information receiving unit for receiving notification information to be presented to a user via a network and a cable corresponding to the HDMI (High Definition Multimedia Interface) standard. An HDMI transmission / reception unit, a control unit for controlling the information reception unit, the HDMI transmission / reception unit, and a memory, and a CEC (Consumer Electronics Control) command defined by the HDMI standard is transmitted / received by the HDMI transmission / reception unit. An information notification program executed by the control unit in the information notification device that switches the information input terminal selected by the information transmission destination device, and has received the notification information from the information reception unit In response, the request active source command is broadcasted to the HDMI transmitting / receiving unit. A physical address included in the first active source command in response to the HDMI transmitting / receiving unit receiving a first active source command corresponding to the request active source command from another source device. Is stored in the memory, and the HDMI transmitting / receiving unit is instructed to broadcast a second active source command for notifying other source devices that the information input terminal to which the device is connected is switched to the active state. The HDMI transmission / reception unit is instructed to output the notification information to the information transmission destination device, and a set stream path command is transmitted from the information transmission destination device to another source device having a physical address stored in the memory. Sending the special command indicating that the HD It instructs the I transmitting and receiving unit.

  According to the information notification apparatus, the information notification method, and the information notification program according to the present invention, it is possible to present notification information temporarily without requiring an operation from the user.

1 is a block diagram of an information notification system including an information notification device according to a first exemplary embodiment. 1 is a block diagram of an information notification apparatus according to a first exemplary embodiment. 6 is a table for explaining a CEC command used in an information notification system including the information notification apparatus according to the first embodiment; FIG. 3 is a sequence diagram for explaining an operation of the information notification system including the information notification device according to the first exemplary embodiment; 3 is a flowchart for explaining the operation of the information notification apparatus according to the first exemplary embodiment;

Embodiment 1
Embodiments of the present invention will be described below with reference to the drawings. For clarity of explanation, the following description and drawings are omitted and simplified as appropriate. In the drawings, the same elements are denoted by the same reference numerals, and redundant description is omitted as necessary.

  FIG. 1 shows a block diagram of an information notification system 1 according to the first embodiment. As shown in FIG. 1, the information notification system 1 according to the first embodiment uses a display device 10 such as a television as an information transmission destination device. The information notification device 11 and the source device 12 are connected to an HDMI (High Definition Multimedia Interface) port provided in the display device 10. The information transmission destination device is not limited to a display device as long as it is a device provided with an HDMI port, and an audio device that outputs only sound can be used. The information notification device 11 is one of the source devices, but in the following description, the name of the source device is not used for the information notification device 11 in order to distinguish it from the source device 12. The source device 12 is assumed to be a video viewing device such as a media player or a recorder, for example. The information notification device 11 may be a device having a network communication function and an HDMI port. For example, the information notification device 11 may be a device that does not have video output as a main function, such as a broadband router. In the example illustrated in FIG. 1, the physical address of the information notification device 11 is “0x2000”, and the physical address of the source device 12 is “0x1000”.

  In the information notification system 1 according to the first exemplary embodiment, information that is highly urgent (hereinafter referred to as emergency notification information) is transmitted to the information notification device 11 via the network while viewing the video reproduced by the source device 12 using the display device 10. ) Is temporarily switched from the source device 12 to the information notification device 11 for the information input terminal (eg, HDMI port) to be backed by the display device 10. Here, in the information notification system 1 according to the first exemplary embodiment, the information notification apparatus 11 outputs a special CEC (Consumer Electronics Control) command (hereinafter, referred to as a special command) to temporarily enter an active state. Switch HDMI port. Therefore, in the following, the information notification apparatus 11 will be described in detail.

  FIG. 2 is a block diagram of the information notification apparatus 11 according to the first embodiment. As illustrated in FIG. 2, the information notification apparatus 11 includes an information reception unit 20, a control unit 21, an HDMI transmission / reception unit 22, and a memory 23.

  Here, the control part 21 is realizable by the calculating part which can execute programs, such as CPU (Central Processing Unit), for example. Moreover, the control part 21 may comprise the function calculated | required by the information notification apparatus 11 with hardware. In the following description, only the information notification function among the functions realized by the control unit 21 will be described. This information notification function is realized by an information notification program executed by the control unit 21.

  Here, the above-described program can be stored using various types of non-transitory computer readable media and supplied to a computer. Non-transitory computer readable media include various types of tangible storage media. Examples of non-transitory computer-readable media include magnetic recording media (for example, flexible disks, magnetic tapes, hard disk drives), magneto-optical recording media (for example, magneto-optical disks), CD-ROMs (Read Only Memory) CD-R, CD -R / W, including semiconductor memory (for example, mask ROM, PROM (Programmable ROM), EPROM (Erasable PROM), flash ROM, RAM (Random Access Memory)). The program may also be supplied to the computer by various types of transitory computer readable media. Examples of transitory computer readable media include electrical signals, optical signals, and electromagnetic waves. The temporary computer-readable medium can supply the program to the computer via a wired communication path such as an electric wire and an optical fiber, or a wireless communication path.

  The information receiving unit 20 receives notification information presented to the user via the network. Here, the network to which the information notification apparatus 11 is connected is a public network, a LAN, or the like, and any network that can receive notification information such as emergency notification information from the outside. The HDMI transmitting / receiving unit 22 requests the information transmission destination device to switch the HDMI port to be activated using the CEC command and outputs notification information. Further, the control unit 21 is connected to the display device 10 with a cable corresponding to the HDMI standard. The control unit 21 controls the information reception unit 20 and the HDMI transmission / reception unit 22. Details of the control method of the information receiving unit 20 and the control unit 21 by the control unit 21 will be described later. The memory 23 holds data generated by the operation of the control unit 21.

  Next, a CEC command used in the information notification system including the information notification apparatus according to the first embodiment will be described. FIG. 3 shows a table for explaining CEC commands used in the information notification system including the information notification apparatus according to the first embodiment.

  As shown in FIG. 3, the information notification system 1 according to the first embodiment uses an active source command, a request active source command, a set stream path command, and a special command. The special command is newly defined using a command (for example, a vendor command) based on the HDMI standard that allows the vendor to arbitrarily define the command contents within a predetermined range. Each command defines three fields: a header, an opcode, and an operand.

  The active source command is a command for declaring that the own device is an active source device. In the active source command, header information is described in the header, a value (0x82) indicating the active source command is described in the operation code, and the physical address of the device is described in the operand.

  The request active source command is a command for requesting the currently active source device to transmit the active source command. In the request active source command, header information is described in the header, a value (for example, 0x85) indicating the request active source command is described in the operation code, and nothing is described in the operand (or an invalid value is described). .

  The set stream path command requests that when the source device having the physical address stored in the operand receives this command, the device becomes an active source device and sends the active source command to the source device. It is a command. In the set stream path command, header information is described in the header, a value indicating the set stream path command (for example, 0x86) is described in the operation code, and nothing is described in the operand (or an invalid value is described). .

  The vendor command is a command based on the HDMI standard that allows the vendor to arbitrarily define command contents within a predetermined range. In the vendor command, header information is described in the header, a value indicating the vendor command (for example, 0x89) is described in the operation code, and a value arbitrarily specified by the vendor can be described in the operand. In the special command, the value indicating the set stream path command (0x86) and the physical address of the source device connected to the HDMI port switched by the display device 10 are described in the operand. The device that has received this special command sends a set stream command to the physical address stored in the operand. For example, in the configuration of FIG. 1, when the display device 10 is to send a set stream path command addressed to the information notification device 11, “0x861000” is described in the operand of the special command.

  Next, the operation of the information notification system 1 according to the first embodiment will be described. FIG. 4 is a sequence diagram for explaining the operation of the information notification system including the information notification apparatus according to the first embodiment. The example shown in FIG. 4 shows an operation when the information notification apparatus 11 receives notification information while the source device 12 is an active source.

  As illustrated in FIG. 4, in the information notification system 1 according to the first embodiment, the control unit 21 of the information notification device 11 performs HDMI transmission / reception in response to reception of the notification information by the information reception unit 20 of the information notification device 11. The unit 22 is instructed to broadcast the request active source command. When the request active source command is received, the source device 12 that is currently the active source broadcasts the first active source command. Thereafter, when the HDMI transmitting / receiving unit 22 of the information notification device 11 receives the first active source command, the control unit 21 of the information notification device 11 includes the source device 12 described in the operand of the received first active source command. The physical address is stored in the memory 23.

  Subsequently, the control unit 21 of the information notification device 11 instructs the HDMI transmission / reception unit 22 to broadcast-transmit the second active source command so that the own device becomes an active source. As a result, the display device 10 activates the HDMI port to which the information notification device 11 is connected. Thereafter, the information notification device 11 outputs the notification information received by the information reception unit 20 from the HDMI transmission / reception unit 22. Thereby, the notification information is presented on the display device 10. And the control part 21 of the information notification apparatus 11 instruct | indicates the HDMI transmission / reception part 22 to transmit a special command to the display apparatus 10, after a fixed period passes. This special command instructs the display device 10 to transmit the set stream path command to the source device 12. The display device 10 that has received the special command transmits a set stream path command to the source device 12. Then, the source device 12 that has received the set stream path command broadcasts the third active source command. Thereby, the display device 10 switches the HDMI port to be activated to the HDMI port to which the source device 12 is connected.

  Next, the operation of the information notification apparatus 11 for performing the operation of the information notification system 1 will be described. FIG. 5 is a flowchart for explaining the operation of the information notification apparatus according to the first embodiment.

  As illustrated in FIG. 5, when the information notifying device 11 starts the operation, the information notifying device 11 waits for the operation until display information is received by the information receiving unit 20 (NO branch of Step S1). When the information receiving unit 20 detects the reception of the notification information (YES in step S1), the information notification device 11 instructs the HDMI transmitting / receiving unit 22 to transmit the request active source command by the control unit 21. (Step S2).

  Subsequently, when the HDMI transmitting / receiving unit 22 receives the first active source command corresponding to the request active source command transmitted in step S2 (YES branch in step S3), the control unit 21 receives the first The physical address described in the operand of the active source command is stored in the memory 23 (step S4). On the other hand, when the HDMI transmitting / receiving unit 22 cannot confirm the reception of the first active source command corresponding to the request active source command transmitted in step S2 (NO branch of step S3), the control unit 21 The following processing is performed without saving the address.

  Subsequently, the control unit 21 instructs the HDMI transmitting / receiving unit 22 to transmit a second active source command that declares that the device is an active source (step S6). Thereafter, the control unit 21 instructs the HDMI transmitting / receiving unit 22 to output the notification information received by the information receiving unit 20 to the display device 10 (step S7). The display of the notification information is performed for a certain period (for example, a display period set in advance from the output start time of the notification information) (step S8).

  If the physical address is not stored in the memory 23 (NO branch of step S9), the control unit 21 waits for an operation until the next notification information is input. On the other hand, when the physical address is stored in the memory 23 (YES branch of step S9), the control unit 21 has a special operand having the physical address stored in the memory 23 and the value of the set stream path command. A command is generated, and the HDMI transmission / reception unit 22 is instructed to transmit the special command to the display device 10 (step S10). Thereafter, the control unit 21 deletes the physical address stored in the memory 23 (step S11), and waits for an operation until the next notification information is input.

  From the above description, the information notification apparatus 11 according to the first embodiment uses a special command generated based on a vendor command permitted as a CEC command. Thereby, in the information notification system 1 using the information notification apparatus 11 according to the first exemplary embodiment, it is possible to temporarily present emergency notification information without requesting an operation from the user. In particular, when a user uses a source device that does not have means for providing emergency notification information, there is a possibility that the opportunity to know the emergency notification information may be lost. However, by using the information notification device 11 according to the first exemplary embodiment, it is possible to eliminate the possibility of such non-delivery of the information while eliminating the user's trouble regarding the return from the emergency notification information presentation state to the original state. Can do.

  Note that the present invention is not limited to the above-described embodiment, and can be changed as appropriate without departing from the spirit of the present invention.

DESCRIPTION OF SYMBOLS 1 Information notification system 10 Display apparatus 11 Information notification apparatus 12 Source device 20 Information receiving part 21 Control part 22 HDMI transmission / reception part 23 Memory

Claims (6)

An information notification device that switches an information input terminal selected by an information transmission destination device using a CEC (Consumer Electronics Control) command defined by an HDMI (High Definition Multimedia Interface) standard,
An information receiving unit for receiving notification information to be presented to the user via the network;
Requesting the information transmission destination device to switch the information input terminal to be in an active state using the CEC command, and outputting the notification information;
A control unit for controlling the information receiving unit and the HDMI transmitting / receiving unit;
A memory, and
The controller is
In response to being notified that the notification information has been received from the information reception unit, the HDMI transmission / reception unit is instructed to broadcast the request active source command,
In response to the HDMI transmitting / receiving unit receiving a first active source command corresponding to the request active source command from another source device, the physical address included in the first active source command is stored in the memory. ,
Instructing the HDMI transmitting / receiving unit to broadcast a second active source command for notifying other source devices that the information input terminal to which the device is connected is switched to an active state,
Instructing the HDMI transmitting / receiving unit to output the notification information;
An information notification device that instructs the HDMI transmitting / receiving unit to transmit a special command that instructs to transmit a set stream path command from the information transmission destination device to another source device having a physical address stored in the memory.   The request active source command, the first active source command, the second active source command, and the set stream path command are commands whose definitions are determined according to the HDMI standard, and the special command is determined by a vendor. The information notification apparatus according to claim 1, wherein the information notification apparatus is a command according to the HDMI standard that is allowed to arbitrarily define command contents within a predetermined range.   The information notification apparatus according to claim 1, wherein the special command includes an operation code corresponding to the set stream path command and a physical address stored in the memory in an operand area.   4. The control unit according to claim 1, wherein the control unit instructs the HDMI transmission / reception unit to transmit the special command in response to elapse of a preset display period from the output start time of the notification information. The information notification device according to item. An information receiving unit for receiving notification information to be presented to a user via a network; an HDMI transmitting / receiving unit connected to an information transmission destination device with a cable corresponding to the HDMI (High Definition Multimedia Interface) standard; the information receiving unit; A control unit that controls the HDMI transmission / reception unit and a memory, and is selected by the information transmission destination device by transmitting / receiving a CEC (Consumer Electronics Control) command defined by the HDMI standard in the HDMI transmission / reception unit. An information notification method in an information notification device for switching information input terminals,
In response to receiving the notification information from the information receiving unit, broadcast request active source command,
In response to receiving a first active source command corresponding to the request active source command from another source device, storing a physical address included in the first active source command in the memory;
Broadcasting a second active source command for notifying other source devices that the information input terminal to which the device is connected is switched to an active state;
Outputting the notification information to the information transmission destination device;
An information notification method for transmitting a special command instructing to transmit a set stream path command from the information transmission destination device to another source device having a physical address stored in the memory. An information receiving unit for receiving notification information to be presented to a user via a network; an HDMI transmitting / receiving unit connected to an information transmission destination device with a cable corresponding to the HDMI (High Definition Multimedia Interface) standard; the information receiving unit; A control unit that controls the HDMI transmission / reception unit and a memory, and is selected by the information transmission destination device by transmitting / receiving a CEC (Consumer Electronics Control) command defined by the HDMI standard in the HDMI transmission / reception unit. An information notification program executed by the control unit in the information notification device for switching the information input terminal,
In response to receiving the notification information from the information receiving unit, instructing the HDMI transmitting / receiving unit to broadcast the request active source command,
In response to the HDMI transmitting / receiving unit receiving a first active source command corresponding to the request active source command from another source device, the physical address included in the first active source command is stored in the memory. ,
Instructing the HDMI transmitting / receiving unit to broadcast a second active source command for notifying other source devices that the information input terminal to which the device is connected is switched to an active state,
Instructing the HDMI transmitting / receiving unit to output the notification information to the information transmission destination device,
An information notification program for instructing the HDMI transmission / reception unit to transmit a special command for instructing transmission of a set stream path command from the information transmission destination device to another source device having a physical address stored in the memory.

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