WO2004093389A1 - 無線端末、ベース機器、ワイヤレスシステム、無線端末の制御プログラム、ベース機器の制御プログラム、およびコンピュータ読み取り可能な記録媒体 - Google Patents
無線端末、ベース機器、ワイヤレスシステム、無線端末の制御プログラム、ベース機器の制御プログラム、およびコンピュータ読み取り可能な記録媒体 Download PDFInfo
- Publication number
- WO2004093389A1 WO2004093389A1 PCT/JP2004/005271 JP2004005271W WO2004093389A1 WO 2004093389 A1 WO2004093389 A1 WO 2004093389A1 JP 2004005271 W JP2004005271 W JP 2004005271W WO 2004093389 A1 WO2004093389 A1 WO 2004093389A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- connection
- base device
- wireless
- identification data
- wireless terminal
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/16—Analogue secrecy systems; Analogue subscription systems
- H04N7/167—Systems rendering the television signal unintelligible and subsequently intelligible
- H04N7/1675—Providing digital key or authorisation information for generation or regeneration of the scrambling sequence
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/2854—Wide area networks, e.g. public data networks
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/4104—Peripherals receiving signals from specially adapted client devices
- H04N21/4108—Peripherals receiving signals from specially adapted client devices characterised by an identification number or address, e.g. local network address
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/426—Internal components of the client ; Characteristics thereof
- H04N21/42684—Client identification by a unique number or address, e.g. serial number, MAC address, socket ID
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
- H04N21/43615—Interfacing a Home Network, e.g. for connecting the client to a plurality of peripherals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
- H04N21/4363—Adapting the video or multiplex stream to a specific local network, e.g. a IEEE 1394 or Bluetooth® network
- H04N21/43637—Adapting the video or multiplex stream to a specific local network, e.g. a IEEE 1394 or Bluetooth® network involving a wireless protocol, e.g. Bluetooth, RF or wireless LAN [IEEE 802.11]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/488—Data services, e.g. news ticker
- H04N21/4882—Data services, e.g. news ticker for displaying messages, e.g. warnings, reminders
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
Definitions
- Wireless terminal Description Wireless terminal, base device, wireless system, wireless terminal control program, base device control program, and computer-readable recording medium
- the present invention relates to a wireless terminal, a base device, a wireless system, a control program for a wireless terminal, a control program for a base device, and a computer-readable recording medium.
- ISD II—T Terrestrial
- OFDM Orthogonal Frequency Division Multiplexing
- carriers carriers
- ghost interference due to multipath can also be suppressed.
- ISDB-T the transmission mode that defines the carrier spacing, the modulation method for each carrier, and the guard axis in the time axis direction provided for each effective symbol length.
- Multiple standards are specified for each, and an extremely large number of signal formats are allowed in the standard.Actually, the most appropriate format is selected from among these according to services such as fixed reception and mobile reception. become.
- the broadcasting station can arbitrarily determine the signal configuration such as audio broadcasting and high-vision broadcasting, standard fixed broadcasting and mobile broadcasting in one transmission channel.
- ISDB_T incorporates interleaving in the time axis direction, and the radio waves used are also suitable for transmission to mobiles, so mobile receivers such as in-car TVs, PDAs (Personal Digital Assistants) and mobile phones
- mobile receivers such as in-car TVs, PDAs (Personal Digital Assistants) and mobile phones
- PDAs Personal Digital Assistants
- mobile phones One of the major features is that stable reception is possible even with mobile terminals such as telephones. In the future, services that suppose such mobile reception are also expected to be highly expected.
- a wireless center (transmitter) 122 equipped with a tuner or the like and a wireless center (transmitter) 122 a-122 c
- the receiver currently has a wireless center (transmitter) 122a to 122c. It is necessary to know which communication pair has been established.
- Various methods have been proposed for establishing and identifying communication pairs between such wireless communication devices.
- a digital cordless telephone device described in Patent Document 1 shown below a system call code that is set in common for the parent device and the child device can be transmitted from the parent device or the child device to another parent device or the child device by wireless communication, and the other parent device can be transmitted.
- a system is disclosed in which a child device can easily set a plurality of parent devices and child devices to operate on the same wireless system by storing the received system call code in a memory. ing.
- Patent Document 2 shown below includes a device to be controlled, and a controller that controls the device via a transmission path, wherein the device is a device state management unit that manages a state of the device body, and a device.
- the controller in a device control system including a device to be controlled and a controller for controlling the device, when the state of the device changes, the controller immediately It is characterized in that the state of the device after the state change can be grasped.
- a wireless AV system as shown in FIG. 8 requires a plurality of AV devices to be used in a general home. This is intended to be used by wireless connection, and since multiple AV devices are installed at relatively short distances, there is a risk that control data exchange as described above may interfere with each other.
- the wireless center 122 a when the user receives a stream from the wireless center 122 a by the receiver 133 and performs an operation to reproduce the stream, the wireless center 122 a is A connection process is performed in which the identification ID of the own device is transmitted to the receiver 13 and the receiver 13 3 recognizes the identification ID, and a wireless communication pair is established between these devices.
- the wireless center 122 b receives the identification ID of its own device issued to another receiver. It is possible that the device 13 3 receives the wrong message. More specifically, the receiver 1 33 3 has received and recognized the identification ID from the wireless center 122 b earlier than the identification ID from the wireless center 122 a. In this case, establish a connection with the wireless center 122 b and do not connect to the wireless center 122 a.
- the receiver 13 3 reproduces the stream from the wireless center 12 2 b which has been mistakenly paired with the communication pair, but the operation of the receiver 13 3 itself is as follows. Since it is normal, the user will not be notified that the wrong communication pair has been established.
- a wireless terminal is a wireless terminal that establishes a connection with a base device, and obtains identification data for identifying the base device from the base device.
- a connection destination notifying means for notifying a user of a base device with which a connection is currently established based on the identification data.
- the wireless terminal acquires the identification data from the base device and establishes a connection with the base device. Furthermore, since the wireless terminal notifies the user of the base device to which the wireless terminal is currently connected based on the identification data, the user can specify the base device to which the wireless terminal is connected, and can communicate with the desired base device by wireless. It can recognize whether or not the terminal is connected.
- the base device of the present invention is characterized in that the base device includes identification data transmitting means for transmitting the identification data to the wireless terminal.
- the base device of the connection destination is notified to the user from the wireless terminal, so that it is possible to recognize whether or not the desired base device and the wireless terminal are connected.
- a wireless system includes: the wireless terminal; and a base device including identification data transmitting means for transmitting the identification data to the wireless terminal.
- a wireless system is a wireless system including a base device and a wireless terminal, wherein the wireless terminal transmits identification data for identifying the base device from the base device.
- a connection establishment means for establishing a connection with the base device, a first connection confirmation mode transition means for transitioning to a connection confirmation mode upon input of an instruction from a user, and a connection confirmation
- the connection confirmation means for acquiring a connection confirmation command for connection confirmation from the connected base device, and after the transition of the connection confirmation mode, the connection confirmation means issues the connection confirmation command within a predetermined time.
- warning means for giving a warning to the user if not acquired.
- the base device transmits identification data for transmitting identification data for identifying the base device.
- Means, a second connection confirmation mode transition means for transitioning to a connection confirmation mode in response to input of an instruction from a user, and a connection confirmation command transmission means for transmitting the connection confirmation command upon transition to the connection confirmation mode. It is characterized by including.
- the wireless terminal can establish a connection with the base device by acquiring the identification data transmitted from the base device. However, if the wireless terminal does not acquire the identification data for some reason, the wireless terminal No connection is established between the terminal and the base device.
- the base device that has shifted to the connection confirmation mode transmits the connection confirmation command.
- the wireless terminal When the wireless terminal is connected to the base device that has shifted to this connection check mode, it can acquire the above connection check command.
- Confirm connection command Can not get.
- the wireless terminal after the transition to the connection confirmation mode does not acquire the above-mentioned connection confirmation command from the base device that has transitioned to the connection confirmation mode within a predetermined time, it is warned that the user is warned.
- the user can confirm that the wireless terminal is not connected to the base device that has shifted to the connection confirmation mode.
- the user shifts the desired base device and the wireless terminal to the connection confirmation mode, the user can easily know whether or not the desired base device and the wireless terminal are connected. It becomes.
- the wireless terminal of the present invention constitutes the above wireless system, and has the same effects as the above wireless system.
- the base device of the present invention constitutes the above-mentioned wireless system, and has the same effects as the above-described wireless system.
- the wireless terminal or the base device may be realized by a computer.
- the wireless terminal or the base device is operated by operating the computer as each of the units.
- a computer-readable recording medium that records a control program for a wireless terminal realized by a computer is also included in the scope of the present invention.
- FIG. 1 is a block diagram showing a configuration of a wireless AV system according to an embodiment of the present invention.
- FIG. 2 is a block diagram showing a configuration of a wireless center of the wireless AV system shown in FIG.
- FIG. 3 is a block diagram showing the configuration of the TV main body of the wireless AV system shown in FIG.
- FIG. 4 is a flowchart showing an operation in which the wireless center and the TV main body normally establish a communication pair in the wireless AV system shown in FIG.
- Figure 5 shows that there are multiple wireless centers near the TV main unit.
- FIG. 7 is a flowchart showing a first mode of an operation when a communication pair is misidentified on the V body (receiver) side.
- FIG. 6 is a flow chart showing a second mode of the operation when the TV main unit (receiver) misidentifies a communication pair partner because there are a plurality of wireless centers near the TV main unit. It is.
- Fig. 7 shows a third aspect of the operation when the TV main unit (receiver) misidentifies the other party of the communication pair because there are multiple wireless centers near the TV main unit. This is a chart.
- FIG. 8 is a diagram showing a configuration example of a wireless AV system including a plurality of wireless centers (transmitters) and one receiver.
- FIG. 9 is a flowchart illustrating a fourth mode of the connection process between the wireless center and the TV main unit, in which a connection between the wireless center and the TV main unit not intended by the user is established.
- Fig. 10 shows the fifth mode of the connection process between the wireless center and the TV main unit.
- 6 is a flowchart showing a case where connection between the wireless center and the TV main body not intended by the user is established.
- FIG. 11 is an explanatory diagram schematically showing the wireless AV system shown in FIG. BEST MODE FOR CARRYING OUT THE INVENTION
- FIG. 1 is a block diagram showing a configuration of a wireless AV system (wireless system) 1 of the present embodiment. This is an example in which the wireless AV system 1 of the present embodiment is applied to a display-separated wireless TV receiver.
- FIG. 11 is an explanatory diagram schematically showing a wireless AV system 1 which is a display-separated type wireless TV receiver.
- the wireless AV system 1 includes a wireless center unit (hereinafter referred to as a wireless center) 2 as a base device and a portable terminal (wireless terminal). And a TV unit 3 (wireless communication device, center device) and a TV center 3 (wireless communication device, display device).
- a wireless transmission network is configured.
- the TV body 3 is wireless with a built-in battery.
- a remote controller is provided so that remote control of a VCR etc. can be performed.
- the wireless center 2 is connected to antennas such as BS and UZV, and AV equipment such as DVD players and VCRs. Then, from the wireless center 2 to the TV 3 Image and / or audio data is transmitted wirelessly.
- the wireless center 2 connects the antenna terminals of the BS terminal 11, U / VH antenna terminal 12 and diversity terminal 13 to devices such as digital VTR and DVD players.
- the TV main unit 3 is equipped with a video 4 input terminal (also used for TV output) for connecting devices such as digital VTR and DVD (Digital Versatile Disc) players 2 1.
- the TV main unit 3 is a thin display device that can be separated from the wireless center 2 and has a built-in battery and is portable or portable.
- a liquid crystal television hereinafter referred to as a liquid crystal television
- an inorganic EL or the like.
- the TV main unit 3 mainly has a display function and an audio function, while the wireless center 2 mainly has a control function for controlling the tuner unit and the TV main unit 3. To accommodate.
- the TV main body 3 according to the present embodiment will be described using a liquid crystal television as an example of a thin display device.
- Data (video and / or audio data) is transmitted and received between the wireless center 2 and the TV main unit 3 by an SS (Spread Spectrum) wireless system conforming to the IEEE 80.2.11 standard.
- SS Sespread Spectrum
- the data transmission from the wireless center 2 to the TV 3 uses video compression formats of the Moving Picture Expert Group (MPEG) 2 and exceeds 10 Mbps for video transmission, DVD-Video and digital broadcasting. Transmit via communication line.
- Command transmission transmission (transmission of control commands) between the wireless center 2 and the TV body 3 is performed by the SS wireless system.
- Streams (bit strings) encoded with MPEG video or MPEG audio, and when applied to actual applications including other encoded streams, encoding including synchronization is performed. Streams need to be multiplexed and integrated into one, and the stream must be in a data format that conforms to the unique physical format protocol of the storage media, network, etc. is there.
- the MPEG 2 system includes a program stream (MPEG 2-PS, PS Program Stream) that composes one program, as well as a transport stream that can compose multiple programs, as in MPEG 1. There is a stream (MPEG2-TS, TS: Transport Stream).
- the MPEG stream is a byte stream that has many 1-bit flags but is bit-aligned for each unit such as a header.
- information indicating the length is placed before the data portion that is not fixed length.If unnecessary, that portion is skipped or the beginning of the next data group is confirmed.
- the data structure allows for highly reliable separation processing.
- a device that receives compressed video and audio signals that conforms to the MPEG2 encoding system must be able to decode and overflow video and audio data on the decoding side.
- the video and audio sampling frequency on the encoding side must match the video and audio sampling frequency or STC (System Time Clock) on the decoding side.
- the decoding device uses the PCR (Program Clock Reference) or the SCR (System Clock Reference) specified by the MPEG2 system standard (ISQ / IEC standard 138 18-1).
- the video and audio sampling frequencies on the encoding side match the video and audio sampling frequencies on the decoding side.
- FIG. 2 is a block diagram showing a configuration of the wireless center 2 of the wireless AV system 1.
- a wireless center 2 is connected to a BS terminal 11 and receives and selects a BS broadcast by a tuning signal.
- a BS tuner 31 and a U / VH F antenna terminal 12 are connected to the U / V / VHF Receives and tunes in UZ— V— HF tuner 32 and BS tuner 31 or U / 'VHF tuner 32 Receives and tunes video and audio (AV) signals
- a wireless center microcomputer (hereinafter referred to as a wireless center microcomputer) 37 that transmits and receives the TV command signal 44 to control the entire device while transmitting, and a control program for the wireless center microcomputer 37
- An electrically erasable programmable ROM (EEPROM) 38 which is an electrically rewritable nonvolatile memory for storing various data such as communication control data and transmission channel change programs, and a wireless center 2 is provided with an LED (light emitting diode) light emitting element 100 and the like, which performs a predetermined light emitting operation.
- EEPROM electrically erasable programmable ROM
- the wireless center 2 has a plurality of broadcast tuners (here, two tuners), and at least one of the plurality of BS tuners 31 and U / VH F tuners 32 is a tuner capable of receiving terrestrial digital broadcasts. It may be hot.
- the SS transmission / reception unit 36 converts the data selected by the first selector 35 into a digital signal.
- the A / D converter 51 converts the data into a video compression format of MPEG 2.
- MP EG 2 Encoder 52 Transmits transmission data using the SS radio system.
- SS Radio transmission / reception engine 53 composed of SS radio and radio control unit, and SS transmission / reception unit 36 Both are configured with a first SS-CPU 54 that detects the radio wave condition.
- the SS wireless transmission / reception engine 53 has a transmission function of transmitting an MPEG2 stream and commands to the SS transmission / reception unit 61 (described later with reference to FIG. 3) of the TV main unit 3, and an SS transmission / reception unit 6 Send commands to and receive commands from Transmission and reception function.
- Various specifications in the wireless center 2 and the TV main unit 3 can be changed by changing the program to be written in the EEPROM 38.
- the program ROM is made of a non-volatile memory such as EPROM or EEPROM, and the program development time is greatly reduced. I have. Also, by downloading the program and rewriting the contents of the EPROM program, it is possible to easily upgrade the function or change the function.
- FIG. 3 is a block diagram showing a configuration of the TV main body 3 of the wireless AV system 1.
- the ⁇ body 3 receives and transmits the ⁇ V command signal 71, and receives the MPEG 2 stream ⁇ command transmission data transmitted from the SS transmission / reception unit 36 of the wireless center 2.
- the SS Transmit / Receive Unit 61 (communication means) that decodes (restores) the received MPEG2 stream, etc., into the original data and restores it using the SS Transmit / Receive Unit 61
- It consists of a second selector 62 for selecting data and an AV signal input externally via the video 4 input terminal (TV output) 2 1, and an LCD for displaying video signals and outputting audio signals.
- the display section 6 3 (part of the notification means) and the TV command signal 71 are transmitted and received, and the source selection signal 72 and the OSD (on screen display) 73 are transmitted.
- TV microcomputer 64 (part of the notification means) that controls the entire system by Your program in an electrically rewritable nonvolatile memory for storing various data such as transmission channel change program communication control data, and La EEPR OM 65, remote control light receiving unit 66 that receives control commands from a remote control device (not shown) (not shown), battery 67, and charge / discharge of battery 67 And a battery charger microcomputer 68.
- the SS transmission / reception unit 61 is an SS radio transmission / reception engine 81 composed of an SS radio and a radio control unit that receives data transmitted by the SS radio system, and an MPEG 2 decoder that decodes the received MPEG 2 stream. 8 2.
- the D / A converter 8 3 that converts the decoded data into analog signals, and the SS transmission / reception unit 6 1. (Communication state detecting means).
- the SS wireless transmission / reception engine 81 has a receiving function of receiving an MPEG 2 stream command from the SS transmission / reception unit 36 of the wireless center 2, and a command / reception from the SS transmission / reception unit 61. It has a sending function to send.
- the second SS—CPU 84 adjusts the communication state between the wireless center 2 and the TV main unit 3 (strong and weak radio waves, interference with the communication path) by a retransmission request based on the electric field strength of the received radio wave and the error rate. It has a function as means for detecting radio wave condition. Information indicating the detected radio wave state is sent to the TV microcomputer 64 as a TV command signal 71.
- the second SS—CPU 84 of the TV main unit 3 has the configuration in which the above-mentioned radio wave state detection function is provided, but the first SS-CPU 54 of the wireless center 2 has the same function.
- the information indicating the detected radio wave state may be command-transmitted from the wireless center 2 to the TV body 3.
- the first SS—CPU 54 and A configuration in which both the second SS—CPU 84 have a radio wave state detection function may be employed. Furthermore, the above-mentioned radio wave state detection function may be performed by the TV microcomputer 64 or the wireless center microcomputer 37.
- the TV microcomputer 64 controls the entire device and, based on the detected communication status, confirms that video and audio data are interrupted, that the transmission channel is being changed, and that the connection is in progress. It has a function as a notifying means for notifying each message of the reception sensitivity information including outside the communication range.
- the TV microcomputer 64 measures the time during which the communication is interrupted, and performs transmission channel change control for holding the transmission channel until a predetermined set time has elapsed since the communication was interrupted. A specific example of the transmission channel change control will be described later with reference to FIGS.
- the TV microcomputer 64 has an OSD generation function unit inside, and displays information such as the channel, time, and volume of a program on a screen of a television or the like. 2. Description of the Related Art In video devices such as TVs and electronic devices such as video conferencing systems, it is common to display information such as the channel, time, and volume of a program on a television screen.
- the OSD data is stored not in an image but in a format called a bitmap.
- the bitmap is converted into YUV format pixel values represented by Y, Cb, and Cr. It is superimposed on an original image such as a television broadcast. If an image playback device such as a DVD (not shown) is connected to the video 4 input terminal (TV output) 21, the OSD display can be superimposed on the playback image on the display screen. Note that the image superimposing process of the original image such as a television broadcast and the OSD display is performed by the 0.30 combining unit 69 (FIG. 4).
- the TV main unit 3 is provided with a speaker, a key input unit, a slot for removing a force-type external expansion storage medium, and the like.
- An external expansion storage medium may be attached to the slot to directly read data.
- the card-type external extended storage medium is, for example, a compact flash (registered trademark) (CF) comprising a SRAM (Static RAM) card for holding information written by a power backup, a flash memory that does not require a power backup, and a smart memory.
- CF compact flash
- SRAM Static RAM
- Media, memory sticks, and ultra-compact hard disk drives (HDDs) that are about the same size as a compact flash or can be mounted on a PC Card Typell.
- Remote control receiver 6 6 is an optical communication port that uses IR (Infrared Rays), and receives optical signals from the remote control device that performs various operations on the TV main unit 3 or the wireless center 2. .
- I / O ports for optical communication in accordance with standards for data transmission using infrared rays, IrDA (Infrared Data Association), ASK, etc. Wireless communication port.
- the battery 67 supplies a predetermined power to each part of the TV main body 3.
- the battery charger 67 When the battery charger 67 is ready for charging. For example, it detects that the TV main unit 3 is attached to the wireless center 2 or other cradle, etc. On the other hand, charging and discharging are controlled via power supply terminals (both not shown). Specifically, the battery charger microcomputer 68 accumulates the discharge current of the battery pack, starts charging when it is determined that the remaining capacity of the battery pack has become equal to or less than a predetermined value. The charging current is integrated, and charging is stopped when it is determined that the battery pack is fully charged. The charged battery 67 serves as the main power source of the portable TV when the TV main unit 3 is disconnected from the commercial power supply, and supplies power to each unit of the main unit. Next, a method for establishing a communication pair between the wireless center 2 and the TV main body 3 in the wireless AV system 1 according to the present embodiment having the above configuration will be described in detail.
- FIG. 4 is a flow chart showing an operation in which the wireless center 2 and the TV main body 3 normally establish a communication pair in the wireless AV system 1 of the present embodiment.
- the TV main body 3 transmits a connection request to receive a stream from the wireless center 2 by a remote control operation by a user or the like (S1).
- the transmission of the connection request is performed by wirelessly transmitting the command generated by the TV microcomputer 64 of the TV main unit 3 from the SS transmission / reception unit 61. It is assumed that the transmitted command includes information for identifying the wireless center 2 that is the transmission destination, and that the identification information is stored in advance in the EEPROM 65 or the like of the TV main unit. be able to.
- the wireless center microcomputer 37 of the wireless center 2 receiving the connection request from the TV main unit 3 by the SS transmission / reception unit 36 includes the identification ID indicating its own device stored in the EEPROM 38 or the like. A command for issuing an identification ID is generated and transmitted to the TV main unit 3 by the SS transmission / reception unit 36 (S2).
- the TV main unit 3 Upon receiving the identification ID issuing command, the TV main unit 3 stores the acquired identification ID of the wireless center 2 as an identification ID of a partner device of the communication pair in the EEPROM 605 or the like (S 3), and A connection confirmation command is sent to the wireless center 2 (S4).
- the wireless center 2 that received the connection confirmation command from the TV 3 A predetermined stream is transmitted on a predetermined transmission channel (S5), and the TV main body 3 can receive and reproduce the stream.
- FIG. 5 shows the first embodiment.
- the TV main unit 3 transmits a connection request to the wireless center 2a in order to establish a communication pair with the wireless center 2a (S11).
- the wireless center 2a Upon receiving this, the wireless center 2a transmits an identification ID issuance command including the identification ID of its own device to the TV main unit 3 (S12).
- the operation up to this is the t here is similar to the example shown in FIG. 4, when the identification ID issued commands another wireless center 2 b is transmitted TV main body 3 was rid received (S 1 3, S14), the TV body 3 recognizes and stores the identification ID of the wireless center 2b as the destination device of the communication pair.
- the TV main unit 3 displays the current identification information of the communication partner device on the display unit 63 as an OSD (S15). Then, since the identification information of the wireless center 2b to which the connection should not be made is displayed, the user can know that the wrong communication pair has been established.
- the identification information of the current communication partner device displayed on the OSD a method of directly displaying the identification ID (identification data) issued by the communication partner device can be considered, but it is more preferable.
- the model name of the communication partner device and the name preset by the user for the device And receive them.
- FIG. 6 shows a second embodiment.
- the TV body 3 transmits a connection request to the wireless center 2a in order to establish a communication pair with the wireless center 2a (S21).
- the wireless center 2a transmits an identification ID issuance command including the identification ID of its own device to the TV body (S22).
- the TV main unit 3 stores the acquired identification ID of the wireless center 2a as the identification ID of the partner device of the communication pair (S23), and transmits the connection confirmation command to the wireless center 2a. (S24).
- the operation up to this point is the same as the example shown in FIG.
- the TV main unit 3 receives the identification ID issuing command transmitted by another wireless center 2b (S25), the TV main unit 3 is set as the destination device of the communication pair.
- the identification ID of the wireless center 2b is recognized and stored (S26).
- the wireless center 2a receiving the connection confirmation command from the TV main unit 3 sends a pair confirmation signal for confirming that the established communication pair is maintained for a predetermined time interval. (S27). It is assumed that the pair confirmation signal transmitted by the wireless center 2a includes the identification ID of the own device.
- the TV main unit 3 that has received the pair confirmation signal from the wireless center 2a obtains the identification ID of the partner device included therein and compares it with the identification ID stored as the current communication pair partner ( S28).
- the pair confirmation “The identification ID of the signal for use does not match, and an incorrect communication pair is established. Will be recognized.
- the TV main unit 3 displays a warning indicating that an erroneous communication pair has been established on the display unit 63 to notify the user by displaying an OSD (S29).
- OSD OSD
- FIG. 7 shows a third embodiment.
- the TV main unit 3 transmits a connection request to the wireless center 2a in order to establish a communication pair with the wireless center 2a (S31).
- the wireless center 2a Upon receiving this, the wireless center 2a transmits an identification ID issuance command including the identification ID of its own device to the TV body 3 (S32).
- the operation so far is the same as the example shown in FIG.
- it is assumed that the TV main unit 3 does not transmit a connection confirmation command to the wireless center 2a due to an accidental establishment of a communication pair with another wireless center or a malfunction or the like.
- the wireless center 2a is placed on the surface of the wireless center 2a if it does not receive the connection confirmation command from the TV 3 even after a certain period of time has elapsed after sending the ID ID issuing command to the TV 3
- the LED light emitting unit 100 By causing the LED light emitting unit 100 to emit light in a predetermined manner, it is possible to warn the user that the communication pair has not been properly established (S33).
- a fourth embodiment will be described with reference to FIG. 9 are executed by the wireless center microcomputer (identification data transmission means) 37 in the wireless centers 2a and 2b, and the TV microcomputer 6 4 (connection establishment means, connection destination) in the TV body 3.
- Notification means, connection request means, connection completion notification means, image output means) the first SS—CPU 54 executes in the wireless centers 2a and 2b, and the TV main unit 3 executes
- the second SS—CPU 84 may be executed.
- the user in order to transmit stream data from the wireless center 2a to the TV main unit 3, the user attempts a wireless connection between the wireless center 2a and the TV main unit 3, but the wireless center 2b It is assumed that and TV main unit 3 are wirelessly connected.
- connection processing mode shift switch not shown
- the wireless center 2b located near the TV body 3 has accidentally shifted to the connection mode by another user's operation (S522).
- the TV main unit 3 and the wireless centers 2a and 2b have a common key for transmitting and receiving commands and data in the connection processing mode (steps other than S516 in FIG. 9). .
- this common key is shared between the TV main unit 3 and the wireless centers 2a and 2b. It is a key for encrypting / decrypting commands and data transmitted / received during the connection mode.
- the common key stored in the E EPROM 65 is read, and the transmitted / received commands and data are encrypted / decrypted using this common key.
- the common key stored in the EPROM 38 is read, and the command and data to be transmitted and received are encrypted and decrypted using this common key.
- the TV main unit 3 and the wireless centers 2a and 2b can decode commands and data transmitted and received between the TV main unit 3 and the wireless centers 2a and 2b when the TV main unit 3 is in the connection processing mode.
- the TV main unit 3 When the TV main unit 3 shifts to the connection processing mode, the TV main unit 3 transmits a connection request command for requesting a wireless connection to the wireless center 2 by broadcast (S512).
- connection request command is transmitted by broadcast
- not only the wireless center 2a but also the wireless center 2b in the connection mode can receive and decode this connection request command. Will be.
- the wireless center 2a When receiving the connection request command, the wireless center 2a reads the identification data for specifying the wireless center 2a from the EEPROM 38, and transmits the identification data by broadcast (S5). 0 2).
- the wireless center 2b When receiving the connection request command, the wireless center 2b stores the identification data for identifying the wireless center 2b in the EEPROM. Read out from 3 and send this identification data by broadcast (S522) o
- the identification data transmitted and received by the wireless centers 2a and 2b include not only the ID (identification data) for identifying each wireless center, but also the data and commands, as well as the encrypted data.
- An identification key (key) for decrypting data, commands, etc. is included.
- the identification key is an algorithm unique to each wireless center 2a, 2b.
- the TV body 3 selects and acquires only the earliest received identification data from the identification data transmitted by the wireless centers 2a and 2b, and stores the acquired identification data in the EEPROM 65. (S5 13).
- the TV main body 3 acquires identification data from the wireless center 2b. Therefore, it does not acquire identification data from the wireless center 2a.
- the TV body 3 broadcasts a connection processing completion command indicating establishment of a wireless connection (S514).
- the TV body 3 releases the connection processing mode (S515).
- connection processing completion command S510, S5111
- the wireless centers 2a and 2b Upon receiving the connection processing completion command (S510, S511), the wireless centers 2a and 2b recognize that the connection has been established and release the connection processing mode (S510). 4, S 5 2 4).
- the TV body 3 after releasing the connection processing mode does not use the above-mentioned common key, but encrypts data and commands using the identification key included in the identification data acquired in S513. Will begin to decrypt. Also, connection processing mode After the completion, the wireless center 2b transmits the data encrypted using the identification key included in the identification data of the wireless center 2b without using the above-mentioned common key by broadcast. That is, the TV body 3 can decode only the data from the wireless center 2b indicated by the identification data acquired in S513.
- the TV main unit 3 acquires the earliest received identification data after transmitting the connection request command, and establishes a wireless connection with the wireless center 2b indicated by the acquired identification data. Will be.
- the identification key included in the identification data sent from the wireless center 2b is an algorithm unique to the wireless center 2b, the identification key is unique between the wireless center 2b and the TV main unit 3.
- a wireless connection will be established. After the establishment of the wireless connection, the wireless center 2b transmits the stream data, and the TV body 3 receives the stream data and outputs video and audio.
- the wireless center 2a transmits the identification data in response to the connection request command in S502, and receives the connection processing completion command in S503, so that the TV It operates as if a wireless connection has been established with the main unit 3. Therefore, after completion of the connection processing mode, the wireless center 2a transmits the stream data encrypted using the identification key included in the identification data of the wireless center 2a.
- the TV body 3 cannot decode the stream data because the identification data of the wireless center 2a has not been obtained. That is, the TV main unit 3 and the wireless center 2a are not wirelessly connected. Therefore, the user attempts to establish a wireless connection between the TV main unit 3 and the wireless center 2a. Regardless, a wireless connection is established between the TV main unit 3 and the wireless center 2b.
- the TV main body 3 displays the identification data of the wireless center 2 to which the wireless connection is currently established on the display unit 63 as an OSD (S 516). That is, the TV main body 3 displays the identification data acquired in S513 on the display unit 63 as an OSD.
- the user can recognize that the wireless connection destination of the TV main unit 3 is the wireless center 2b, and can also recognize that the wireless center 2a is not wirelessly connected to the TV main unit 3.
- the user can identify the wireless center to which the TV body 3 is connected wirelessly by visually recognizing the above OSD display. If an unintended wireless connection is established, the user should immediately recognize this. And the connection process can be redone immediately.
- the TV main body 3 acquires the identification data from the wireless center 2 and establishes a connection with the wireless center 2 indicated by the acquired identification data. Furthermore, since the TV main unit 3 notifies the user of the wireless center 2 of the connection destination based on the identification data, the user can specify the wireless center 2 of the connection destination and can also specify the desired wireless center 2. It is possible to recognize whether or not 2 and TV main unit 3 are connected.
- FIG. 10 shows a fifth embodiment.
- the wireless center microcomputers (identification data transmitting means, second connection confirmation mode transition means, connection confirmation command transmitting means) 37 execute the processing in FIG. , TV main unit 3.
- Connection establishment means, first connection confirmation mode transition means, connection confirmation means, warning means, connection request means, connection completion notifying means, image output means) 64 are executed by the wireless center 2a and In 2b, the first SS-CPU 54 may execute, and in the TV main unit 3, the second SS-CPU 84 may execute.
- FIG. 10 the user is trying to establish a wireless connection between the wireless center 2a and the TV body 3, but the wireless center 2b and the TV body 3 are wirelessly connected. Shall be.
- FIG. 10 the same steps as those shown in FIG. 9 are denoted by the same step numbers, and description thereof is omitted.
- the wireless center 2b and the TV main unit 3a complete the connection processing mode (S504, S515, S524), the wireless center 2b and the TV main unit 3a
- the TV body 3 decodes the stream data transmitted from the wireless center 2b, and reproduces video and audio based on the stream data.
- the wireless center 2a and the TV main body 3 are not wirelessly connected, but the wireless center 2a performs stream data transmission.
- the user checks whether or not the TV main unit 3 and the wireless center 2a are wirelessly connected. Specifically, when the user presses the connection confirmation button (not shown) configured on the TV body 3 and the wireless center 2a, the TV body 3 and the wireless center 2a shift to the connection confirmation mode (S6). 0 5, S 6 16).
- the wireless center 2a that has shifted to the connection confirmation mode broadcasts a connection confirmation command including the identification data of its own device at regular intervals. Send (S606).
- the TV main unit 3 since the TV main unit 3 is wirelessly connected to the wireless center 2b, the TV main unit 3 cannot acquire a connection confirmation command from the wireless center 2a (NO in S616). This means that the commands and data sent from the wireless center 2a that recognizes the establishment of the wireless connection are encrypted with the identification key of the wireless center 2a, but the wireless connection with the wireless center 2 has been established. This is because the later TV main unit 3 decrypts the received command and data only with the identification key included in the identification data of the wireless center 2b.
- the TV main unit 3 displays a warning on the display unit 63 in OSD (S620). This allows the user to recognize that the wireless center 2a and the TV main unit 3 are not wirelessly connected. The connection process can be immediately restarted.
- connection confirmation button (not shown) configured on the TV body 3 and the wireless center 2b
- the TV body 3 and the wireless center 2b shift to the connection confirmation mode (S61). 6, S 6 25).
- the wireless center 2b that has shifted to the connection confirmation mode broadcasts a connection confirmation command including the identification data of its own device at regular intervals (S626).
- the TV main unit 3 since the TV main unit 3 is wirelessly connected to the wireless center 2b, it is possible to acquire a connection confirmation command from the wireless center 2 (YES in S616). It is sent from wireless center 2b, which is aware of the establishment of a wireless connection.
- the commands and data are encrypted with the identification key of the wireless center 2b, and after the wireless connection with the wireless center 2b is established, the TV body 3 transmits the received commands and data to the wireless center 2b. This is because the data is decrypted using the identification key included in the identification data.
- the TV main body 3 acquires the connection confirmation command
- the identification data of the connection destination is displayed on the display section 63 as an OSD (S619).
- the user can confirm that the connection destination is the wireless center 2b.
- the wireless center 2 shifted to the connection confirmation mode is connected to the connection center.
- a confirmation command is to be sent.
- the TV main unit 3 can acquire the connection confirmation command described above.
- the connection confirmation command cannot be obtained. Therefore, as shown in FIG.
- the TV main unit 3 after the transition of the connection confirmation command does not acquire the above-mentioned connection confirmation command from the wireless center 2a that has transitioned to the connection confirmation mode within a predetermined time, the user If a warning is issued to the user, the user who has been warned can confirm that the wireless center 2a shifted to the connection confirmation mode and the TV main unit 3 are not connected.
- the user can easily know whether or not the desired wireless center 2 and the TV body 3 are connected by shifting the desired wireless center 2 and the TV body 3 to the connection confirmation mode.
- the identification data is displayed on the display unit 63 as a ⁇ SD, so that the user is notified of the wireless center 2 to which the user is currently connected.
- the display is not limited to OSD.
- only the identification data may be displayed on the display unit 63, or the user may be notified by voice of the wireless center to which the user is currently connected.
- a warning is given to the user by displaying a warning on the display unit 63 with the OSD, but is limited to the warning display by the OSD. Not something.
- a means for displaying an identification mark indicating a warning as an image, indicating a warning by voice, or turning on a warning lamp can be considered.
- the identification data includes an identification key for encrypting the data and the command and for decrypting the encrypted data and the command.
- the configuration may be such that the identification data and the identification key are transmitted and received separately.
- the above-mentioned identification key may be configured so that data can be encrypted and decrypted with a single identification key.
- the encryption key and the decryption key may be separately configured, and the encryption key and the decryption key may be configured separately.
- the key including the key may be used as the identification key.
- connection processing mode with center 2 (S501 to 504, S511 to S515, S521 to The mode of S 5 2 4) can be changed and is not limited to the mode shown in FIG.
- a portable TV is used as a wireless AV device
- the present invention is applicable not only to a TV receiver but also to a device having a wireless communication function or a device in which it is integrated.
- a recording / reproducing device for recording on a VTR (Video Tape Recorder), .HDD or DVD may be used.
- a device capable of transmitting and receiving data a device integrated with information device functions represented by a personal computer may be used, and is applicable to all systems.
- the contents of the transmitted / received data may be any.
- the TV receiver 3 has been described as a TV main unit 3.
- the present invention is not limited to this.
- the TV main unit 3 can be connected to a personal computer or another AV device using the tuner. Can also be applied.
- the types of the processing units and the types and formats of the setting information that constitute the wireless communication device and the wireless AV system are not limited to the above-described embodiments. In particular, it is suitable to be applied to equipment conforming to HAVi.
- two tuners a BS tuner and a UZV tuner, are taken as examples, but the types and number of broadcasts such as the CS tuner are not limited to these.
- the wireless communication device and the wireless AV system may be a wireless communication device, an AV device, a broadcasting station selection device, or the like.
- the above-described wireless communication device, wireless AV system, TV main unit 3, and wireless center 2 are also realized by a program for causing the wireless communication device, wireless AV system, TV main unit 3, and wireless center 2 to function.
- This program is stored on a computer-readable recording medium.
- the recording medium the main memory itself may be a program medium, or a program reading device is provided as an external storage device, which can be read by inserting the recording medium there. It may be a simple program medium.
- the stored program may be configured to be accessed and executed by the CPU, or the program may be read in any case, and the read program is not shown.
- the program may be downloaded to a program storage error and the program may be executed. It is assumed that this download program is stored in the main unit in advance.
- the program medium is a recording medium configured to be separable from the main body, such as a tape system such as a magnetic tape or a cassette tape, or a magnetic disk such as a floppy (registered trademark) disk or a hard disk.
- Disk system of optical disk such as ROM / MO / MD / D VD, card system such as IC card / optical card, or fixed including semiconductor memory such as mask ROM, EPROM, EEPROM, flash ROM, etc.
- a medium that supports the program may be used.
- the medium may be a medium that carries the program in a fluid manner such that the program is downloaded from a communication network via the communication connection means.
- the download program may be stored in the main device in advance or may be installed from another recording medium.
- the contents stored in the recording medium are not limited to programs, but may be data.
- a wireless AV system is a wireless AV system including one or more transmitting devices and one or more receiving devices, wherein the transmitting device has its own device with respect to the receiving device.
- the receiving device may include a unit that stores the identification ID received from the transmitting device.
- the receiving device may further include means for transmitting a connection confirmation command to the transmitting device when receiving the identification ID from the transmitting device. Further, in the above wireless AV system, the receiving device may further include means for displaying the identification ID received from the transmitting device.
- the transmitting device further includes a unit that issues an identification ID of the own device to the receiving device and transmits a model name of the own device.
- the device may include means for displaying the model name received from the transmitting device.
- the transmitting device is The receiving device is provided with means for issuing its own identification ID and transmitting the name of its own device set by the user.
- the receiving device is provided with means for issuing its own identification ID and transmitting the name of its own device set by the user.
- the receiving device The name received from the transmitting device. May be provided.
- the transmitting device issues an identification ID of the transmitting device to the receiving device, and further checks a pair including the identification ID of the transmitting device at regular time intervals.
- the receiving device may determine whether the identification ID included in the pair confirmation signal received from the transmitting device does not match the stored identification ID. This may be indicated.
- the transmitting device issues its own identification ID to the receiving device and then does not receive the connection confirmation command from the receiving device within a fixed period of time. May be provided with a notification means for notifying that.
- the notifying means of the transmitting device may be an LED light emitting device which performs a predetermined light emitting operation.
- the wireless AV system Is a method for establishing and recognizing a communication pair in the above-mentioned method. If a communication pair not intended by the user is mistakenly established between a plurality of AV devices, the user can be notified.
- System is provided.
- a wireless terminal according to the present invention is a wireless terminal that establishes a connection with a base device, and obtains identification data for identifying the base device from the base device. And a connection destination notifying means for notifying a user of a base device with which a connection is currently established based on the identification data.
- the wireless terminal acquires the identification data from the base device and establishes a connection with the base device. Furthermore, since the wireless terminal notifies the user of the base device to which the wireless terminal is currently connected based on the identification data, the user can specify the base device to which the wireless terminal is connected, and can communicate with the desired base device by wireless. It can recognize whether or not the terminal is connected.
- the wireless terminal of the present invention includes connection request means for transmitting a connection request command for requesting connection with a base device
- the connection establishment means includes a base device which has responded to the connection request command. It is characterized by acquiring only the earliest received identification data from among the identification data transmitted from, and establishing a connection with the base device indicated by the acquired identification data.
- the wireless terminal transmits the connection request command to the base device.
- a plurality of base devices may respond to a connection request command transmitted from a wireless terminal, and the plurality of base devices may transmit identification data of the own device.
- the wireless terminal acquires only the earliest received identification data from the identification data transmitted from the base device in response to the connection request command, and establishes a connection with the base device indicated by the acquired identification data. Therefore, there is no base device desired by the user. It is not necessarily connected to the line terminal.
- the wireless terminal notifies the user of the base device to which the wireless terminal is currently connected based on the identification data. Therefore, even when a plurality of base devices respond to the connection request from the wireless terminal, the user can recognize whether or not the desired base device and the wireless terminal are connected.
- the wireless terminal according to the present invention is characterized in that, in addition to the above configuration, after acquiring the identification data, the wireless terminal further includes a connection completion notifying unit that transmits a connection processing completion command indicating establishment of connection with the base device.
- the plurality of base devices may recognize the connection with the wireless terminal by responding to the connection request command from the wireless terminal and acquiring the connection processing completion command. Even in this case, only the base device that transmitted the identification data to the wireless terminal first is simply connected to the wireless terminal. Therefore, other base devices are not connected, but recognize that they are connected, and may perform operations after connection.
- the user can recognize the base that is truly connected by the connection destination notifying means. Since the device can be specified, it is possible to recognize whether the connection between the desired base device and the wireless terminal has been established.
- the wireless terminal according to the present invention is characterized in that, in addition to the above configuration, the identification data includes a key for encrypting data and a key for decrypting the encrypted data.
- the identification data includes the key for encrypting the data and the key for decrypting the decrypted data. Therefore, The wireless terminal that has acquired the identification data from the source device can decrypt the data even if the base device transmits data encrypted based on the identification data. Therefore, the wireless terminal end acquired the identification data from the base device, c can establish a connection between the base apparatus shown in the identification data noted was ⁇ Contact Yopi dark Goka encrypting the data
- the key to decrypt the data may be the same key. That is, encryption and decryption may be realized with the same key. Further, the key for encryption and the key for decryption may be configured separately.
- the key for encrypting the data and the key for decrypting the encrypted data are algorithms that are unique to the base device indicated in the identification data.
- the identification data is obtained.
- the established wireless terminal can establish a unique connection state with the base device indicated by the identification data.
- the wireless terminal of the present invention further includes an image output unit that displays an image based on video data received from a base device of a connection destination on a display unit.
- the data is displayed on the display unit by OSD.
- the wireless terminal displays an image based on the video data received from the connected base device on the display unit, and displays the identification data of the connected base device in SD on the display unit. are doing. Therefore, while watching the image displayed on the display unit, the user can connect to the base of the connection destination. You can check the equipment.
- the base device of the present invention is characterized in that the base device includes identification data transmitting means for transmitting the identification data to the wireless terminal.
- the user is notified of the base device to be connected from the wireless terminal, so that it is possible to recognize whether the desired base device and the wireless terminal are connected.
- a wireless system includes: the wireless terminal; and a base device including identification data transmitting means for transmitting the identification data to the wireless terminal.
- the user is notified of the base device to be connected from the wireless terminal, so that it is possible to recognize whether the desired base device and the wireless terminal are connected.
- a wireless system is a wireless system including a base device and a wireless terminal, wherein the wireless terminal transmits identification data for identifying the base device from the base device.
- a connection establishment means for establishing a connection with the base device, a first connection confirmation mode transition means for transitioning to a connection confirmation mode upon input of an instruction from a user, and a connection confirmation mode.
- Connection confirmation means for acquiring a connection confirmation command for connection confirmation from the connected base device after the transfer of the connection, and the connection confirmation means does not acquire the connection confirmation command within the predetermined time after the transition to the connection confirmation mode
- the base device includes a warning unit that warns a user, and the base device transmits identification data for transmitting identification data for identifying the base device.
- the connection confirmation mode It is characterized by comprising: a second connection confirmation mode transition means to be shifted to; and a connection confirmation command transmission means to transmit the above-described connection confirmation and command when the mode is switched to the connection confirmation mode.
- the wireless terminal can establish a connection with the base device by acquiring the identification data transmitted from the base device. However, if the wireless terminal does not acquire the identification data for some reason, the wireless terminal No connection is established between the terminal and the base device.
- the base device that has shifted to the connection confirmation mode transmits the connection confirmation command.
- the wireless terminal is connected to the base device that has shifted to this connection check mode, it can acquire the above connection check command.
- the wireless terminal is not connected to the base device that has shifted to this connection check mode, The connection confirmation command cannot be obtained.
- the wireless terminal after the transition to the connection confirmation mode does not acquire the above-mentioned connection confirmation command from the base device that has transitioned to the connection confirmation mode within a predetermined time, if the user is warned, the user is warned. The user can confirm that the wireless terminal is not connected to the base device that has shifted to the connection confirmation mode.
- the user shifts the desired base device and the wireless terminal to the connection confirmation mode, the user can easily know whether or not the desired base device and the wireless terminal are connected. .
- the wireless terminal may further include:
- the base device includes identification data transmitting means for transmitting the identification data upon receiving the connection request signal, and the connection establishing means is transmitted from the base device in response to the connection request command. Only the earliest received identification data among the identification data is acquired, and a connection with the base device indicated by the acquired identification data is established.
- the wireless terminal transmits the connection request command to the base device, and the base device transmits the identification data when receiving the connection request command.
- a plurality of base devices respond to a connection request command transmitted from a wireless terminal, and the plurality of base devices transmit identification data of the own device.
- the wireless terminal acquires only the earliest received identification data from the identification data transmitted from the base device in response to the connection request command, and establishes a connection with the base device indicated by the acquired identification data. Therefore, the base device desired by the user is not always connected to the wireless terminal.
- the desired base device and the wireless terminal can be shifted to the connection confirmation mode to obtain the desired base device. Whether or not the device and the wireless terminal are connected can be easily known.
- the wireless system of the present invention in addition to the above-mentioned configuration, further comprising: a connection completion notifying unit that transmits a connection processing completion command indicating establishment of connection with a base device after acquiring the identification data.
- the base device includes a connection recognizing means for recognizing connection with the wireless terminal when receiving the connection completion command.
- a plurality of base devices communicate with a connection request command from a wireless terminal.
- the connection with the wireless terminal is recognized by responding to the command and obtaining the connection processing completion command. Even in this case, only the base device that transmitted the identification data to the wireless terminal first is simply connected to the wireless terminal. Therefore, other base devices are not connected, but recognize that they are connected, and perform operations after connection.
- the user shifts the desired base device and the wireless terminal to the connection confirmation mode. By doing so, it is possible to easily know whether or not the desired base device and the wireless terminal are connected.
- the wireless system according to the present invention is characterized in that, in addition to the above configuration, the identification data includes a key for encrypting the data and a key for decrypting the encrypted data.
- the identification data includes a key for encrypting the data and a key for decrypting the encrypted data. Therefore, the wireless terminal that has acquired the identification data from the base device can decrypt the data even if the base device transmits data encrypted based on the identification data. Therefore, the wireless terminal that has acquired the identification data from the base device can establish a connection with the base device indicated by the identification data.
- the wireless system of the present invention can encrypt the data in addition to the above configuration.
- the encryption key and the key for decrypting the encrypted data are characterized by an algorithm unique to the base device indicated by the identification data.
- the key for encrypting the data and the key for decrypting the encrypted data are unique to the base device indicated in the identification data. Because of the algorithm, the wireless terminal that has acquired the identification data can establish a unique connection state with the base device indicated by the identification data.
- the wireless system of the present invention further includes image output means for displaying an image based on video data received from a connected base device on a display unit, and the warning means includes an OSD on the display unit. A warning indication is displayed by the.
- the wireless terminal displays an image based on the video data received from the connected base device on the display unit, and performs a display indicating an OSD warning on the display unit. Therefore, the user can easily know whether or not the desired base device and the wireless terminal are connected while viewing the image displayed on the display unit.
- the wireless terminal of the present invention constitutes the above wireless system, and has the same effects as the above wireless system.
- the base device of the present invention constitutes the above-mentioned wireless system, and has the same effects as the above-mentioned wireless system.
- the wireless terminal or the base device may be realized by a computer.
- the wireless terminal or the base device is realized by a computer by operating the computer as each of the above units.
- a computer-readable recording medium in which a terminal control program is recorded is also included in the scope of the present invention.
- the wireless system of the present invention is suitable for, but not limited to, an in-home AV network system such as a display-separated type wireless TV receiver for wirelessly transmitting video and Z or audio data. Instead, it is widely applicable to wireless communication devices such as mobile phones ZP HS (registered trademark) (Personal Handy-Phone System) ⁇ mobile information terminals (PDAs (Personal Digital Assistants)).
- ZP HS registered trademark
- PDAs Personal Digital Assistants
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04727143A EP1617596A4 (en) | 2003-04-17 | 2004-04-13 | RADIO TERMINAL, BASIC DEVICE, WIRELESS SYSTEM, RADIO TERMINAL CONTROL PROGRAM, BASIC DEVICE CONTROL PROGRAM, AND COMPUTER READABLE RECORDING MEDIUM |
US10/553,351 US8045966B2 (en) | 2003-04-17 | 2004-04-13 | Wireless terminal, base device, wireless system, wireless terminal control program, base device control program, and computer-readable storage medium |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003112770 | 2003-04-17 | ||
JP2003-112770 | 2003-04-17 | ||
JP2004114698A JP3667744B2 (ja) | 2003-04-17 | 2004-04-08 | 無線端末、ベース機器、ワイヤレスシステム、無線端末の制御プログラム、ベース機器の制御プログラム、およびコンピュータ読み取り可能な記録媒体 |
JP2004-114698 | 2004-04-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004093389A1 true WO2004093389A1 (ja) | 2004-10-28 |
Family
ID=33302225
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/005271 WO2004093389A1 (ja) | 2003-04-17 | 2004-04-13 | 無線端末、ベース機器、ワイヤレスシステム、無線端末の制御プログラム、ベース機器の制御プログラム、およびコンピュータ読み取り可能な記録媒体 |
Country Status (5)
Country | Link |
---|---|
US (1) | US8045966B2 (ja) |
EP (1) | EP1617596A4 (ja) |
JP (1) | JP3667744B2 (ja) |
KR (1) | KR100725892B1 (ja) |
WO (1) | WO2004093389A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7620410B2 (en) | 2004-10-29 | 2009-11-17 | Renesas Technology Corp. | Broadcast station synchronization method and mobile terminal |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4207900B2 (ja) | 2004-12-22 | 2009-01-14 | ソニー株式会社 | リモコン・システム、リモート・コマンダ、並びにリモコン・サーバ |
WO2006095717A1 (ja) | 2005-03-10 | 2006-09-14 | Matsushita Electric Industrial Co., Ltd. | テレビ受信システム |
JP4682052B2 (ja) | 2006-02-10 | 2011-05-11 | キヤノン株式会社 | 通信装置、通信方法、通信装置の制御方法並びに通信システム |
JP4886463B2 (ja) | 2006-10-20 | 2012-02-29 | キヤノン株式会社 | 通信パラメータ設定方法、通信装置及び通信パラメータを管理する管理装置 |
JP4626701B2 (ja) * | 2008-10-21 | 2011-02-09 | ソニー株式会社 | 表示装置 |
KR101404062B1 (ko) | 2012-11-15 | 2014-06-05 | 주식회사 엘지화학 | 무선 충전이 가능한 케이블형 이차전지 |
JP5902079B2 (ja) | 2012-12-07 | 2016-04-13 | 日立マクセル株式会社 | 映像表示装置および端末装置 |
US10757632B2 (en) * | 2013-09-30 | 2020-08-25 | Qualcomm Incorporated | Public land mobile network identifier for non-mobile network operator networks |
CN105898250A (zh) * | 2014-12-23 | 2016-08-24 | 中国人民解放军装甲兵工程学院 | 一种用于室内无线光通信的光信息场模块 |
CN105898249A (zh) * | 2014-12-23 | 2016-08-24 | 中国人民解放军装甲兵工程学院 | 基于光信息场的室内视频信号无线光通信系统 |
JP7001497B2 (ja) * | 2018-03-01 | 2022-01-19 | セイコーソリューションズ株式会社 | 決済端末、決済処理システム、及びプログラム |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0477817A (ja) * | 1990-07-16 | 1992-03-11 | Hitachi Ltd | 情報処理システム |
JPH05235845A (ja) * | 1992-02-20 | 1993-09-10 | Oki Electric Ind Co Ltd | 端末収容方式 |
JP2001144767A (ja) * | 1999-11-10 | 2001-05-25 | Fuji Photo Film Co Ltd | 無線lanの接続先選択方法 |
JP2002051051A (ja) * | 2000-08-03 | 2002-02-15 | Sony Corp | 表示端末 |
JP2002063652A (ja) * | 2000-08-21 | 2002-02-28 | Toshiba Corp | 情報交換装置およびキャッシュレジスタ装置 |
JP2002150339A (ja) * | 2000-08-31 | 2002-05-24 | Hitachi Ltd | 自動取引き装置 |
Family Cites Families (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0746662A (ja) | 1993-07-29 | 1995-02-14 | Sony Corp | デジタルコードレス電話装置 |
US5819173A (en) * | 1996-04-30 | 1998-10-06 | At&T Wireless Services, Inc. | Dynamically reconfigurable wireless communicator |
US6636489B1 (en) * | 1997-11-03 | 2003-10-21 | Bell South Wireless Data. L.P. | Wireless management system and a method for an automated over-the-air managing process for wireless communication device |
KR20010040301A (ko) * | 1997-12-17 | 2001-05-15 | 이시가끼 요시오 | 통신단말기 |
EP0961193B1 (en) | 1998-05-29 | 2010-09-01 | Texas Instruments Incorporated | Secure computing device |
FI108267B (fi) * | 1999-03-16 | 2001-12-14 | Nokia Corp | Tietojenvälitysmenetelmä |
KR100350607B1 (ko) * | 1999-03-31 | 2002-08-28 | 삼성전자 주식회사 | 음성 및 화상 송수신을 위한 휴대용 복합 통신단말기 및 그 동작방법과 통신시스템 |
US6920479B2 (en) * | 1999-06-16 | 2005-07-19 | Im Networks, Inc. | Internet radio receiver with linear tuning interface |
JP2001134618A (ja) * | 1999-08-26 | 2001-05-18 | Naoyuki Kageyama | 携帯情報システム |
US7403510B1 (en) * | 1999-11-10 | 2008-07-22 | Fujifilm Corporation | Communication terminal apparatus, communication method thereof, and connected destination selection method in wireless LAN |
US20020016776A1 (en) * | 2000-03-24 | 2002-02-07 | Chorng-Yeong Chu | Distributing digital content |
JP3456189B2 (ja) * | 2000-03-31 | 2003-10-14 | 日本電気株式会社 | 移動通信システム |
WO2001080547A2 (en) * | 2000-04-18 | 2001-10-25 | Mobilian Israel Ltd. | Wireless video distribution |
US6954615B2 (en) * | 2000-07-25 | 2005-10-11 | Sony Corporation | Display terminal |
US20020062467A1 (en) * | 2000-11-22 | 2002-05-23 | Hunzinger Jason F. | System and method for reliable billing of content delivered over networks |
SE0004326D0 (sv) * | 2000-11-24 | 2000-11-24 | Ericsson Telefon Ab L M | Base station identification |
JP2002215483A (ja) | 2001-01-15 | 2002-08-02 | Matsushita Electric Ind Co Ltd | 機器制御システム並びに、機器制御システムにおけるコントローラ及びデバイス |
GB2377574A (en) | 2001-07-12 | 2003-01-15 | Graeme Roy Smith | Modular software/firmware definable video server |
JP3449366B2 (ja) * | 2001-07-26 | 2003-09-22 | 株式会社デンソー | 無線通信端末、コンピュータプログラムおよび基地局識別番号の送信方法 |
WO2003041436A1 (en) * | 2001-11-05 | 2003-05-15 | Nokia Corporation | A method for identification of base stations and for checking measurement values of an observed time difference between transmissions from base stations |
US7313375B2 (en) * | 2002-05-02 | 2007-12-25 | Lucent Technologies Inc. | Follow-me broadcast reception method and system |
US20030232593A1 (en) * | 2002-06-13 | 2003-12-18 | Nokia Corporation | Digital data transfer through different communication paths |
KR100968457B1 (ko) * | 2003-05-14 | 2010-07-07 | 삼성전자주식회사 | 컴퓨터 시스템 및 이를 이용한 디스플레이방법 |
-
2004
- 2004-04-08 JP JP2004114698A patent/JP3667744B2/ja not_active Expired - Fee Related
- 2004-04-13 KR KR1020057019756A patent/KR100725892B1/ko not_active IP Right Cessation
- 2004-04-13 WO PCT/JP2004/005271 patent/WO2004093389A1/ja active Application Filing
- 2004-04-13 US US10/553,351 patent/US8045966B2/en not_active Expired - Fee Related
- 2004-04-13 EP EP04727143A patent/EP1617596A4/en not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0477817A (ja) * | 1990-07-16 | 1992-03-11 | Hitachi Ltd | 情報処理システム |
JPH05235845A (ja) * | 1992-02-20 | 1993-09-10 | Oki Electric Ind Co Ltd | 端末収容方式 |
JP2001144767A (ja) * | 1999-11-10 | 2001-05-25 | Fuji Photo Film Co Ltd | 無線lanの接続先選択方法 |
JP2002051051A (ja) * | 2000-08-03 | 2002-02-15 | Sony Corp | 表示端末 |
JP2002063652A (ja) * | 2000-08-21 | 2002-02-28 | Toshiba Corp | 情報交換装置およびキャッシュレジスタ装置 |
JP2002150339A (ja) * | 2000-08-31 | 2002-05-24 | Hitachi Ltd | 自動取引き装置 |
Non-Patent Citations (1)
Title |
---|
See also references of EP1617596A4 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7620410B2 (en) | 2004-10-29 | 2009-11-17 | Renesas Technology Corp. | Broadcast station synchronization method and mobile terminal |
Also Published As
Publication number | Publication date |
---|---|
JP2004336722A (ja) | 2004-11-25 |
EP1617596A4 (en) | 2008-03-19 |
KR20050121738A (ko) | 2005-12-27 |
KR100725892B1 (ko) | 2007-06-08 |
EP1617596A1 (en) | 2006-01-18 |
US8045966B2 (en) | 2011-10-25 |
JP3667744B2 (ja) | 2005-07-06 |
US20070127408A1 (en) | 2007-06-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7590412B2 (en) | Terminal device, center device and system for controlling audio and video distribution | |
KR100734993B1 (ko) | 무선 단말기, 베이스 기기, 와이어리스 시스템, 무선 단말기의 제어 방법, 무선 단말기의 제어 프로그램을 기록한 컴퓨터 판독가능한 기록 매체 | |
WO2004093404A1 (ja) | 送信機、受信機、ワイヤレスシステム、制御方法、制御プログラムおよびそれを記録したコンピュータ読み取り可能な記録媒体 | |
KR100705523B1 (ko) | 와이어리스 제어 시스템, 제어 기기, 피제어 기기, 기기의제어 방법, 제어 프로그램 및 이를 기록한 컴퓨터 판독가능한 기록 매체 | |
JP3667744B2 (ja) | 無線端末、ベース機器、ワイヤレスシステム、無線端末の制御プログラム、ベース機器の制御プログラム、およびコンピュータ読み取り可能な記録媒体 | |
JP3638942B2 (ja) | 表示装置、無線通信システム、表示装置の制御方法、無線通信システムの制御方法、表示装置制御プログラム、無線通信システム制御プログラム、および該プログラムを記録した記録媒体 | |
JP2008306253A (ja) | 携帯受信端末及び機器制御システム | |
JP3621407B2 (ja) | 送信機、受信機、ワイヤレスシステム、制御方法、制御プログラムおよびそれを記録したコンピュータ読み取り可能な記録媒体 | |
JP2004343725A (ja) | 無線通信装置、ワイヤレスavシステム並びに動作制御プログラム及びそのプログラムを記録した記録媒体 | |
JP4024776B2 (ja) | 無線端末、ワイヤレスシステム、無線端末の制御方法、制御プログラム及びそれを記録したコンピュータ読み取り可能な記録媒体 | |
JP3699105B2 (ja) | 送信機、受信機、ワイヤレスシステム、制御方法、制御プログラムおよびそれを記録したコンピュータ読み取り可能な記録媒体 | |
CN100444567C (zh) | 无线终端、基站设备、无线系统 | |
JP4327001B2 (ja) | 無線端末、ワイヤレスシステム、無線端末の制御方法、無線端末の制御プログラム及びそれを記録したコンピュータ読み取り可能な記録媒体 | |
JP4642374B2 (ja) | ワイヤレスavシステムにおける制御データ通信装置 | |
JP2004343723A (ja) | ワイヤレスavシステム | |
JP2004320762A (ja) | 無線通信装置、ワイヤレスavシステム並びに動作制御プログラム及びそのプログラムを記録した記録媒体 | |
JP2004336731A (ja) | 端末装置、センタ装置、通信システム、端末装置の制御方法、センタ装置の制御方法、端末装置制御プログラム、センタ装置制御プログラム、および該プログラムを記録した記録媒体 | |
JP4037384B2 (ja) | 無線通信装置、ワイヤレスavシステム、無線伝送方法並びに動作制御プログラム及びそのプログラムを記録した記録媒体 | |
JP4823487B2 (ja) | 表示装置、無線通信システム、表示装置の制御方法、表示装置制御プログラム、および該プログラムを記録した記録媒体 | |
JP2004140600A (ja) | 送受信装置 | |
JP2006109134A (ja) | ディジタル放送受信装置及び映像再生装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): BW GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 20048098729 Country of ref document: CN |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1020057019756 Country of ref document: KR |
|
REEP | Request for entry into the european phase |
Ref document number: 2004727143 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2004727143 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 1020057019756 Country of ref document: KR |
|
WWP | Wipo information: published in national office |
Ref document number: 2004727143 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2007127408 Country of ref document: US Ref document number: 10553351 Country of ref document: US |
|
WWP | Wipo information: published in national office |
Ref document number: 10553351 Country of ref document: US |