JP2003140630A - Unit and system for display - Google Patents

Abstract

PROBLEM TO BE SOLVED: To display easy-to-see icons representing events on equipment as to a TV set and the equipment which are connected to a network. SOLUTION: A TV, a VCR, and a PC are connected by 1394I/F and when a TV viewer performs remote controller depression, the distance between the TV and remote controller is measured to determine an icon of optimum display size by using the measured value and distance and resolution/icon table. The equipment is requested to transfer it. When an icon of the specified size is present on the equipment, it is transferred to the TV and displayed, but when not, sizable equipment (PC) on the 1394I/F is searched for and icon data whose size is converted by the PC is transferred to the TV. Those are realized by 1394Asynchronousconnection and new commands.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display control device, and more particularly to a display device and a display system in which a display device and an electronic device are connected via a network.

[0002]

2. Description of the Related Art Conventionally, in a device in which a device such as a VTR is connected to a display device such as a TV on a network, in order to show the connection and operation, graphical data such as an icon is displayed from the connected device to the TV or the like. Transfer to the display device,
There is a display system (Japanese Patent Laid-Open No. 9-149325, etc.).

However, in these conventional means, graphical data such as icons are transferred to and displayed on a display device for each type of connected device, and the resolution of the display device, the distance between the viewer and the display device, etc. Was not taken into account, so it was not always easy for the viewer to see.

For example, when a video tape recorder (hereinafter referred to as VTR) is connected to a TV having a normal resolution of 525 lines and the VTR tape rewinding operation is graphically displayed on the TV, The icon shown in FIG. 79 is used. An icon in the shape of a tape is displayed to indicate that the VTR is in operation, and "RW" is displayed in the icon to indicate that it is rewinding.
Is placed (abbreviation of rewind), and three different icons are sequentially displayed, so that the tape is rewound.

Here, the icon has a resolution of 1080
Considering the case of displaying on a high resolution display device of a book,
If an icon having the same size is displayed on a TV having the same screen size, enlarged display is required. In this case, in the simplified display with the same icon data, as shown in FIG.
The letters and curved parts of the picture became jagged and unsightly.

In view of these points, the present invention transfers graphical data and icons according to the resolution and size of the TV from the device and displays them, so that a user can easily display a high-quality display. The purpose is to be able to provide.

Further, in view of these points, the present invention transfers the graphical data and the icon corresponding to the viewing distance from the device and displays them, thereby providing the user with an easier-to-use and high-quality display. The purpose is to be able to.

Further, in view of these points, in the present invention, even if the requested device does not have the requested icon, a device capable of converting the requested data is searched for on the network, and a graphical representation that meets the request as much as possible is provided. Data, icon,
Device-Transfer from and display to the user
It is an object of the present invention to provide a display device and a display system that are easier to use and can display with high quality.

[0009]

The present invention can solve the above-mentioned problems by providing the following constitutions.

(1) In an electronic device having a device that performs a certain event or operation and a display unit that displays according to the event or the action, when displaying the same event or action, the display is performed. A display device for displaying the phenomenon according to the distance between the display means and the viewer of the display means and the resolution of the display means.

(2) The display device according to (1), wherein the distance between the display means and the viewer of the display means is the display means and remote control means controlled by the viewer's hand. .

(3) The expression means for the certain event and action is
The display device according to (1) above, which is an icon.

(4) The distance between the display means and the viewer of the display means, and the phenomenon according to the resolution of the display means,
The display device according to (1) above, wherein the operation selecting means is an icon design and display size.

(5) The display device according to (1), wherein the network is based on the IEEE1394 standard.

(6) An electronic device having a display means for displaying according to the event or action issues a display data request for the event or action to the device performing the event or action, and The device that performs the event or action transmits the display data based on the request to an electronic device having a display unit that performs a display according to the event or action, and performs display. Display device.

(7) When an electronic device having a display means for displaying according to the event or action issues a display data request for the event or action to the device performing the event or action, The device that performs the event or action is
Display data is transmitted to a third electronic device connected to the network, the third device performs conversion for more appropriate display, and the converted converted display data is displayed according to an event or operation. The display device according to (1) above, which is transmitted to an electronic device having a display unit for performing the display.

(8) A display data storage means for transmitting and storing the converted display data converted and generated by the third electronic device also to the device itself performing the event or operation. The display device according to (1) above.

(9) In a system in which a device performing a certain event or operation and an electronic device having a display means for displaying the event or the operation are connected via a network, In the case of displaying, there is a selecting means for selecting the event or the action display according to the distance between the display means and the viewer of the display means and the resolution of the display means, and the event based on the selecting means. A display system characterized by displaying.

(10) The display system according to (9), wherein the distance between the display means and the viewer of the display means is the display means and remote control means controlled by the hand of the viewer. .

(11) The display system according to (9), wherein the means for expressing the certain event or action is an icon.

(12) The means for selecting the event or action according to the distance between the display means and the viewer of the display means and the resolution of the display means is an icon design and display size. The display system according to (9) above.

(13) The display system according to (9), wherein the network is based on the IEEE1394 standard.

(14) An electronic device having a display means for displaying according to the event or action issues a display data request for the event or action to the device performing the event or action, and The device that performs the event or action transmits the display data based on the request to an electronic device that has a display unit that displays according to the event or action, and performs display. Display system.

(15) When a display data request for the event or action is issued to the device performing the event or action from an electronic device having a display means for displaying the event or action, Based on the request, the device that performs the event or operation transmits the display data to the third electronic device connected to the network, and the third device performs conversion for more appropriate display, The converted converted display data is transmitted to an electronic device having a display unit for displaying according to an event or an operation, and is displayed.
Display system described.

(16) A display data storage means for transmitting and storing the converted display data converted and generated by the third electronic device to the device itself that performs the event or operation. The display system according to (9) above.

[0026]

BEST MODE FOR CARRYING OUT THE INVENTION (First Embodiment) A first embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing the entire display control device according to the embodiment of the present invention. 1.1 in Figure 1 is
A TV device capable of receiving a digital TV, which comprises a TV receiving section 1.1a and a display and control section 1.1b, and receives TV broadcasting, remote controller transmission / reception, data transmission / reception with a device connected to a network, and device Control is performed and the obtained TV image data, device image data, various icon data, control information, etc. are displayed.

A video recorder VTR section 1.2 records and reproduces TV, other images and audio data.

The device information data for the VTR operation can also be recorded and read, and the data is
Input and output can be done through the TV receiver inside the VTR and the s1.1 network described later.

Reference numeral 1.5 denotes a remote control unit for the TV viewer to control the TV device 1.1, VTR unit 1.2, etc.
1.1 is a network, the TV device 1.1, VT
The R section 1.2 and the PC 1.4 are connected to perform data transmission / reception. In the present invention, the one conforming to the IEEE1394 standard is used.

FIG. 2 is a diagram for explaining the details of the TV apparatus 1.1.

1.101 is an antenna device, which receives TV radio waves from the outside and converts them into high-frequency electric signals, which will be described later in Tu.
Lead to the ner section.

A Tuner unit 1.102 amplifies a high frequency TV signal from the antenna device 1.101, selects a desired station, demodulates a high frequency TV signal modulated by a carrier wave, and outputs a digital stream (hereinafter TS ( Transport strea
It has a role of converting to data).

Demultiplex section (hereinafter referred to as Demux section) 1.103 is for selecting desired program TS data from the TS signal obtained from the Tuner section 1.102 and accounting information (hereinafter referred to as CA
Data), electronic program guide (hereinafter abbreviated as EPG) data, etc. are separated, and program TS data is transferred to the TS Decode unit 1.105 through the switch unit 1.104, and other data is transferred to the data buffer unit 1.106. To be done.

1.104 is a switch unit for TS Decode
It is selected whether the input data to the section 1.105 is the program TS data from the Demux section 1.103 or the program TS data from the 1394 network section described later. Also, the program T
It also has a function of outputting S data to the 1394 network unit described later.

A TS Decode unit 1.105 decodes program TS data input from the switch unit 1.104, reproduces digital moving image data and PCM voice data, and a voice synthesis control unit 1.132 described later. , To the display synthesis control unit 1.130.

Reference numeral 1.106 denotes a data buffer section for storing additional data separated from the TS data, such as billing information (hereinafter abbreviated as CA information) data and electronic program guide (hereinafter abbreviated as EPG) data. Is.

A TV reception control unit 1.107 controls the above-mentioned antenna unit 1.101 to TSDecode unit 1.105, and performs channel switching, charging control, control based on EPG data, and the like. At this time, necessary data such as remote control data described below is transmitted / received to / from the TV system control unit 1.150 described below.

Reference numeral 1.120 denotes a 1394 i / F section, which controls and manages a high-speed serial i / F standardized by IEEE 1394, and uses 1394 Bus s1.1 described later and 1394 Isochron described later.
ous buffer section (abbreviated as Iso buffer section below) 1.121, 1394
A portion for transmitting / receiving data to / from an asynchronous plug buffer unit (hereinafter abbreviated as a plug buffer unit) 1.122 and the like, which is from the physical layer 101.01 to the Bus management layer 101.04 of FIG.
Shows up to.

The 1394 I / F will be described later.

Reference numeral 1.121 denotes a 1394 isochronous buffer section, which is the isochronous buffer received by the 1394 i / F section 1.120.
s Temporary storage of data, and De through the switch section 1.104
Input in code part 1.105. Also, the program TS data input through the Demux unit 1.103 and the switch unit 1.104 is temporarily stored and input to the 1394 i / F unit 1.120.

1.122 is a 1394 asynchronous plug buffer unit (hereinafter abbreviated as plug buffer unit), which is AV / C async
The plug register and segment required for hronous transfer
The buffer part, which controls the flow during asynchronous transfer,
Used as a temporary storage location for asynchronous data. Still image data, icon data, some control information data, and the like are re-transferred to necessary places via this.

1.123 is an icon data buffer section, which is a temporary storage location of icon data to be displayed on the TV apparatus of the present invention.

Reference numeral 1.124 denotes a viewing distance / icon size table section, which stores a table value capable of retrieving information on the optimum icon size for the resolution of the harmful TV apparatus and the viewing distance of the viewer in this TV apparatus. Has been done.

1.125 is a configuration ROM,
This is a read-only memory that stores device-specific information such as the V device manufacturer name, device name, model name, manufacturing number, manufacturing date, version information of software of the control unit, and category information. These are the 1394 i / F section 1.12
0, can be read from other devices through 1394 Bus s1.1.

Reference numeral 1.126 denotes a still image data buffer unit, which is digital TV broadcast additional data such as EPG data in the data buffer unit 1.106, icon data in the icon data buffer unit 1.123, and is generated in the present TV apparatus. Control information and various still image information etc. which are input through 1394 i / F section 1.120 are input through s1.101 internal Bus,
1.1 To be described later 1.130 This is a buffer memory for temporarily storing in order to display and output to the display unit.

1.127 is a DVCR Decode part,
94 Bus s1.1, 1394 i / F section 1.120, 1394 Isochrono
us Decodes the data from the digital video coder (hereinafter referred to as DVCR) input via the buffer section 1.121,
Playback of digital moving image data and PCM audio data, and display synthesis and control unit 1.130 and voice synthesis and control unit described later.
Output to 1.132.

Reference numeral 1.130 denotes a display synthesizing and control unit, and the moving picture data from the TS Decode unit 1.105 and the DVCR Decode unit 1.127 and the still image data from the 1.126 still image data buffer unit are transmitted from the system control unit 1.150 described later. It is switched or combined by the control of the digital RGB image data and the horizontal and vertical synchronization signals are used as a display 1.31.
Output to.

Reference numeral 1.131 denotes a display, which receives the RGB image data and the horizontal and vertical sync signals from the display synthesizing and controlling section 1.130 and displays them. The display device according to the present invention is
It is a high resolution dot matrix display that can display vertical resolution of 1080 lines and horizontal resolution of 1920 lines or more.

Reference numeral 1.132 is a voice synthesizing / controlling unit for switching or synthesizing the PCM voice data from the TS Decode unit 1.105 and the DVCR Decode unit 1.127, and controlling the volume, sound quality, presence and the like. , The audio output section described later 1.
Output to 133.

The 1.133 voice output unit D / A converts the PCM voice signal input from the voice synthesis and control unit 1.132, converts the PCM voice signal into an analog signal, amplifies the signal, and then outputs the voice from the speaker.

Reference numeral 1.140 is a remote control unit which receives a remote control transmitted from a TV viewer and transfers the data to the system control unit 1.150.

1.150 is a control unit, which will be described later in Bus.
Controls all parts in TV device 1.1 connected to 1.101.

Inside the TV device, the remote control unit 1.140
Data analysis, control of each part according to it, TV
Transfer of the remote control data to the reception control unit 1.107, transmission / reception of information, data processing of the data buffer unit 1.106, control of the still image data buffer unit 1.126, display control synthesis unit 1.130, and image reception by the TV reception unit, VTR, etc. , Control display of icons, various information, etc. Also, the voice control synthesizer 1.132
To control various types of voice.

Further, control of the 1394 i / F section 1.120, management of the 13941so buffer 1.121, management of the 1394 plug buffer section 1.122, etc. are carried out, and thereby the network
VTR1 connected to the network through s1.1.
2. Sends and receives data to and from PC1.3 and also controls VTR1.2.

S1.101 is an internal Bus, which is a data and control Bus. As described above, it is a Bus in the TV device used for transferring image and audio data and transferring each part information. is there.

FIG. 3 is a diagram for explaining the inside of a digital tape recorder (hereinafter referred to as VTR) 1.2 having a 1394 i / F.

Reference numeral 1.201 denotes a 1394 i / F section, which is the above-mentioned 1394 i / F section.
Same as F part 1.120, s1.1 1394 Bus s1.1, V
Controls and manages the transmission and reception of data within TR1.2.

Reference numeral 1.202 denotes a 1394 Isochronous buffer section, which is the same as the Iso buffer section 1.121 described above, and has a 1394Bu
This is a temporary storage location for digital video image data from s s1.1 or from the VCR unit 1.206 described later.

Reference numeral 1.203 denotes a plug buffer section, which is described in 1 above.
394 plug Same as buffer section 1.122.
Used as a temporary storage location for ous data. The icon data in the icon data storage unit 1.205, which will be described later, is also
Sent via the lug buffer.

Reference numeral 1.204 is a configuration ROM having the same function as the above-mentioned viewing distance / icon size table section 1.124, and the manufacturer name, apparatus name, model name, serial number, manufacturing date of the VTR device. Device specific information such as software version information of the control unit and category information is stored.

Reference numeral 1.205 denotes an icon data storage unit which stores the operation and operation information of the VTR via T1394Bus 1.1.
The display icon data shown in FIGS. 5 and 7 for displaying on the V device 1.1 is stored according to various situations and sizes.

Reference numeral 1.206 denotes a VCR unit, which is a video tape running system mechanical unit, the mechanical control unit, a video signal modulating / demodulating unit,
Etc., and is controlled by the VTR control unit 1.207 described later.
1.207 is a VTR control unit, which is 1394 Bus s1.1, 1394 i /
VT transferred through F part 1.201 and plug buffer part 1.203
Based on the R control information, while controlling the VCR unit 1.206, display data such as icons according to the control status,
Icon data storage 1.205, plug buffer 1.203, 13
94 i / F part 1.201, 1394Bus s1.1, TV device 1.1
Send to.

FIG. 4 is a diagram showing details of the remote controller 1.5.

Reference numeral 1.501 is a key button, and the remote control user depresses the button to perform a desired operation.

Reference numeral 1.502 denotes a distance measuring unit, which is a so-called reflection type distance measuring unit used for a camera or the like, which emits infrared rays to an object to be measured and measures the distance by utilizing the reflection. It is something.

When the key button is pressed toward the TV device 1.1, it has a function of measuring the distance between the TV screen and the remote controller.

A data transmitter / receiver 1.503 transmits the key data and distance data to the remote controller control unit 1.140 in the TV device 1.1 and receives a response and the like.

Reference numeral 1.504 denotes a display section for displaying an error or the like when the remote controller key pressed is not received by the TV.

Reference numeral 1.505 denotes a remote controller control unit which scans a key button, detects a depressed key, encodes a key code based on the detected key, and transmits the key code to the TV apparatus 1.1. , Response etc. received,
It also controls the 1.502 distance measuring unit 1.502 to control transmission of the obtained distance data.

Next, the network used in the present invention,
"IEEE1394 high-speed serial bus (hereinafter abbreviated as IEEE1394 I / F)" will be described.

(IEEE1394 Standard) The IEEE1394 I / F is a network bus that supports a daisy chain system, a node branch system, and a combination of these, and that enables a highly flexible connection.

IEEE1394 I / F is 100MHz, 200MHz, 400MHz
This is a data transfer method for performing serial transfer at a bit rate of. A device having a higher transfer rate supports a lower data transfer rate, and thus devices having different transfer rates can coexist.

The IEEE1394 I / F can connect and disconnect devices (so-called hot plug) while the power is on.

With the IEE1394 I / F, connection of equipment, power on / o
Due to ff, etc., the entire bus is reset, the connection configuration is reconstructed and re-recognized, and the ID can be assigned to the connected device.

In the IEEE1 394 I / F, all devices can recognize bus information such as connection configuration.

The IEEE1394 I / F is an Asynchronous transfer that transfers packet data only once, and an Isochronous transfer that continuously transfers continuous data at fixed time intervals (125 us).
There are two transfers.

Asynchronous Transaction transfer is effective for transfer of data such as control signals and file data that are transferred asynchronously as needed.

Isochronous Transaction transfer is effective for transfer of video data, audio signals (so-called stream data), and other data that require temporal continuity.
Therefore, the transfer band is guaranteed in the Isochronous Transaction.

In the IEEE1394 I / F, data transfer is
Everything is done in units of 32 bits (quadlet). Therefore, for data that is less than 32 bits, "0" is added to form a 32 bit structure and a transfer packet is created.

Data transfer by the IEEE1394 I / F has a hierarchical structure as shown in FIG. Of these, physical layer 101.01, link layer 101.02, transaction layer 101.0
The four bus management layers 101.04 and 3, which are the basis of the IEEE1 394 I / F, are defined by the IEEE 1394-1995 standard (hereinafter abbreviated as IEEE 1394 standard).

The physical layer 101.01 includes mechanical and electrical specifications of cables and connectors, code / compositing of input / output signals, and
Bus initialization and bus arbitration processing are specified.

The link layer 101.02 provides the following four services in order to realize transmission / reception of packet data between the physical layer 101.01 and the transaction layer 101.03 described later.

A link request (LK_DATA.request) requesting the transfer destination node to start the transfer of packet data.

Link notification (LK_DATA.indication) for notifying the transfer destination note that a predetermined packet has been received.

A link response (LK_DAT) indicating to the transaction layer that an acknowledge has been received from the transfer destination node.
A. response).

Link confirmation (LK_DATA.confirmation) for confirming the acknowledge from the transfer destination node.

Note that there is no link response in Broadcast communication and Isochoronous communication.

The transaction layer 101.03 shown in FIG. 5 includes three types of asynchronous tran of read, write and lock between the link layer 101.02 and upper layers such as FCP 101.07 (described later).
In order to realize saction, the following four services are provided.

A predetermined tr for the data transfer destination node
Transaction request TR_DATA.re requesting ansaction
quest.

Transaction notification TR_DATA.indicatio for notifying the transfer destination node of reception of a predetermined transaction
n.

Transaction confirmation TR_DATA.acknowledge for confirming status information from the transfer destination node.

Transaction response TR responding to the reception of status information (including data) from the transfer source node
_DATA.response.

Asynchronous communication is performed through this transaction layer, but Isochronous communication is not managed.

The Bus management layer 101.04 is responsible for node control, isochro.
Performs three functions: nous resource management and bus management.

A bus manager is provided in the IEEE1 394 I / F bus.
(Hereinafter BM) and isochronous resource manager (hereinafter IR
There are two bus management nodes of M). These may be the same node.

The node control is a control stat which is present in each node of the IEEE1394 I / F bus and is defined by the IEEE1212 standard.
asynch between nodes using us register (CSR)
Manage ronuos transfers.

Isochronous resource management is performed by the node that has become the IRM. The node is ch shown in FIG.
annel available register and bandwidth available regi
Two isochronous resource allocation regist of ster
manage er. The register is arranged from FFFFF0000220h to FFFFF000022B in the IEEE1394 I / F address space (described later).

A node that intends to perform isochronous communication has two Isochro of channel number (same as channel number) and bandwidth (same as band) prior to data transfer.
Need to get nous resource.

The acquisition of the Isochronous resource is performed by the regi
ster to compare and swap lock transaction (hereinafter lock
transaction), and if this succeeds, the acquisition succeeds and the channel number and bandwidth are guaranteed.

Bus management is performed by a bus manager note, which manages connection information (creates a topology map), manages speed information (creates a speed map), manages power, and provides the information to other notes. To do.

Further, a serial bus control request (SB_CONTROL.
request), serial bus confirmation request (SB_CONTTROL.conf
irmation), serial bus event notification (SB_CONTTRO
L.indication) is used to provide a bus control interface to an upper layer.

IEEE 1394 I / F For details, refer to the IEEE 1394-1995 standard.

Next, the IEEE1394 I / F address space will be described. FIG. 7 shows an address space defined by IEEE1394.

The IEEE1394 I / F address space is IEEE1212.
Uses a fixed 64-bit width address space that conforms to the standard CSR architecture.

In IEE1394, the 64-bit space is first set to 10
Divide into 24 buses. For this purpose, the highest 10 bits are used and this is called the bus ID. Of these, the 10bit is 3Fh
A bus (all “1”) is called a local bus, and refers to a bus to which a certain device (node) is connected. Currently IEEE13
In the 94 standard, there is no regulation regarding access between buses, and the bus ID is limited to the local bus.

Next, each bus is divided into 64 nodes. The next 6 bits are used for this, and this is the node ID (nod
same as e ID). Therefore, the address space assigned to each node is 48 bits wide and 256 T bytes. 256T
The byte address space is managed in units of 256 Mbytes, of which 0h to FFFFDFFFFFFFh is the memory space (InitialM
It is called emory Space). Next FFFFE0000000h to FFFFE
The 256Mbyte space of FFFFFFFh is the private space (Priva
te Space), which is an address space that can be used freely at each node.

From the last FFFFF0000000h to FFFFFFFFFFFFh
The 256 Mbyte space is called a register space (Resister Space), and is used as a common space by the nodes connected to the 1394 bus. The first 2048 bytes of the register space is called the Initial Node Space, and the 512 bytes from the first address are registers defined as the core of the CSR architecture and are implemented by the IEEE1394 I / F. There are a set of state and control information, a reset, and a node state reset register.

The next 512 bytes from the FFFFF0000200h address are
A serial bus register that is required for IEEE1394 I / F management, cycle_time_register, bandwidth_available
There are registers such as _register and channel_available_register.

Then, from the next FFFFF0000400h address to 1024b
yte is a configuration ROM area in which unique information of each note is written.

The rest of the register space is called an initial unit space. FF of the space
IEEE addresses from FFF0000800h to FFFFF000FFFFh
Reserved for 1394 I / F, among which, FFFFF0001000h
From the address to FFFFF000 1 3FFh, Topology_map
From the address FFFFF0002000h to the address FFFFF0002FFFh, Speed_map and the table are assigned.

Also, command registe used in FCP described later
r, response register is FFF from address FFFFF0000B00h
Allocated up to FF0000EFFh.

Next, the configuration ROM will be described.

The ROM is specified by the IEEE1394 standard, and is based on the one specified by the CSR architecture of the IEEE1212 standard. As mentioned above, FFFF of each note
Mapped from F0000400h, maximum size is 1024byt
It is e.

FIG. 8 shows the entire contents of FIG. 9 through FIG.
Is a diagram showing the details.

The configuration ROM is, as shown in FIG.
nfo_length, crc_length, rom_crc_value, bus_i
nfo_block, root_directry, unit_directry, root_
and_unit_length, vendor_denpendent information
It consists of each block.

The first 8 bits of the first 1 quadlet is info_l
ength, and the size of bus_info_block is represented by the quadlet length. It is specified as "04h" in IEC61883-1.

The next 8 bits are crc_length.
It indicates the number of quadlets in the guration ROM. Since the maximum size is 1024 bytes as described above, the maximum value of this value is "255". The remaining 16 bits are rom_crc_value, which is the CRC value of the ROM. If the info_length value is "01h", the remaining 24 bits of the quadlet are vendor
_Id.

FIG. 9 is a diagram showing the details of bus_info_block, which are arranged in four quadlets from FFFFF0000404h, and the basic capability, function, manufacturer name, etc. of the node are described. The first 1 quadlet is ASCII code “T”,
It contains four characters "3", "9", and "4", and indicates that the node uses the IEEE1394 I / F interface.

The imc of the next quadlet is isochronous resour
The node that is ce manage capable and this is “1” is
isochronous resource manager Indicates that it is possible.

Cmc is cycle master capable,
Note that this "1" note is possible for cycle master.

Iso indicates that the node is isochronous capable, and the node having "1" is capable of isochronous transfer.

Bmc is bus manager capable, and a note of "1" indicates that the bus manager is capable.

Cyc_clk_acc is a cycle clock acracy and represents the accuracy of the cycle master clock in ppm. Max
_Rec is the maximum data record size and is the maximum payloa of asynchronous write transfer that this node can receive.
d size is shown. The maximum size is 2exp (max_rec + 1). reserved is a reservation.

The next 24-bit vendor_id is also called company_id, and describes the company name of the manufacturer or the like registered in the IEEE. The following chip_id_lo and chip_id_hi are
The id related to chip is described.

FIGS. 10 to 14 show the contents of root_directy and details of its hierarchical structure.
The p address is located from FFFFF00004 14h.

FIG. 11 is a diagram showing a hierarchical structure, in which ro
ot_directry on top, unit_directry, root_leaf, u
It has a structure that nit_leaf hangs.

FIG. 10 is a diagram showing the contents of root_directry. The first 16 bits of the first 1 quqdlet is the root length
Indicates the size of the root_directy, and CRC is the CRC data for that area. The first 2 bits of each quadlet from the next is key_type, where the root_direc
It is possible to determine what the contents of try are. FIG. 12 shows the contents of the key_type.

The second (FFFFF0000418h) quadlet modu
le_vendor_id is node_vendorJd of bus_info_block
Same campany ID is listed.

The next quadlet (FFFFF000041Ch) is node_
capability, which is an immediate value indicating the capability of the node. Details are omitted.

The next quadlet (FFFFF0000420h) is node_
unique_id offset and node_unique_id_leaf
It is an indirect offset in quadlet units indicating the position of. FIG. 13 shows the contents of node_unique_id_leaf.

The next quadlet (FFFFF0000424h) is unit_
It is a directry offset and the position of unit_directry is qua
It is an indirect offset for each dlet. The content is shown in FIG.

(.FCP) 101.07 is the FCP,
It is used for controlling the equipment or device of the present invention. FCP stands for Function Control Protocol and is IEC
It is standardized by 61883-1 (Genera1). FCP is IE
FC using Asynchronous Transaction of EE1394 I / F
It enables transmission and reception of data within 512 bytes called P frame, which enables control between nodes (between connected devices and devices).

The FCP frame has a command frame and a response.
There are two types, frame, and command frame from the control node (controller) to the controlled node (target)
Written to mmandregister.

The response frame is the data corresponding to the command frame, and is the data written from the controlled node to the response register of the control note described later.

The register that receives the two command frames is called a command register, and the register that receives the response frame is called a response register. , FFFFF0000EFFh are allocated (FIG. 15).

IEEE 1394 I / F Async used during the transfer
The format of hronous packet is shown in FIG. The p
FCP frame data is written in the data part of acket. When the data is within 32 bits, a Quadlet Transaction including a data part inside the header can be used as shown in the right diagram of FIG.

FIG. 17 shows the format of FCP frame. As shown in FIG. 17, the regulation inside the FCP frame, which is regulated by FCP, is only the cts of the first 4 bits. The cts are
Abbreviation of Command / Transaction Set, upper layer (command set, command / response field, comma) that uses the FCP.
It is used to clarify the Transaction rule for transferring nd / response).

FIG. 18 shows the contents currently determined by the cts. “0000” is a code indicating an AV / C command set described later, and some other are reserved.

(.AV / C command) Next, an AV / C command which is an upper layer of the above-mentioned FCP 101.07 and is used for controlling the equipment.
101.08 will be described. AV / C is Audio / visual Cont
Abbreviation for rol, connectio for AV / C Isochronous transfer described later.
n controls, televisions, monitors, video recorders, stereo devices, and so-called AV equipment.

AV / C command 101.08 is the Asynchron described above.
Positioned as the upper layer of ous transaction (transaction layer 101.03), IEEE1394 I / F Asynchronous
Done using transfers.

In the AV / C command set, the control node (conto
(Synonymous with roller), com.
It is started by sending a mand frame, and the controlled node that receives it sends a response frame to the controlling node.
It is basically completed by returning me.

The frame structure of AV / C command and AV / C response is shown in FIGS.

Cts, ctype (response), subunit_type, s
ubunit_ID, opcode, operand [0] -operand [n]
Although it consists of fields, command and response have the same structure except for Ctype and response in each field.
The first 4bit cts is the AV / C command set as described above.
Then, it is fixed at "0000".

The next 4-bit ctype is an abbreviation for command type.
The type of command for the controlled node is shown in FIG. 21.

[0146] "0" is CONTROL and is a comman of the type.
d is a control com that causes the controlled node (target) to perform an operation
Indicates that it is a mand.

"1h" is STATUS, and the controlled node (t
arget) is a status command to inquire the current status. The controlled node (tar
get) is the command and does not change.

"2h" is SPESIFIC INQUARY,
mmand is a command that inquires whether the controlled note supports the control command.

"3" is NOTIFY, and the control node (cont
roller) is a command indicating that the controlled node wants to know future state changes, and the controlled node is the comma
When nd is received, first the current status is response code
It will be returned in a response frame together with “F” (INTERIM, described later),
When a status change occurs, the response code “D” (CHANGE
Return the response frame again with (D, described later).

"4" is GENERAL SPESIFIC INQUARY, and the command is the control command of the controlled node.
It is a command that inquires whether or not is supported only by the operation code field. "5" to "7" are reserved. "8" to "F" are used in the response frame described later. Of the types, SPESIFIC INQUARY is supported by all commands, but the others depend on the type of command.

The next 4 bits in the response frame are Respon
se is a response code and is used when returning the response result of the controlled node to the command frame to the control node. The contents are shown in FIG.

"0" to "7" are used in the command type. “8h” is NOT IMPLEMETED and comman
The node that received d frame (target node) does not support the command, indicating that it cannot be executed. “9h”
Is ACCEPTED, indicating that the received command will be executed. “Ah” is REJECTED, and the node that receives the command (target node) supports the command but cannot execute it (for example, a play command when there is no tape).

“B” is IN TRANSITION and indicates that the state is in transition (previous command execution, etc.).

"C" means IMPLEMETNTED / STABLE, "D"
Is CHANGED and is the final responder of the NOTIFY command.
It is used as a response code for e and is sent back to the control node when the state of the controlled note that received the command changes.

"E" is a reservation. “F” is INTERIM
Is. In AV / C command set, control node (controll
er) received the command frame from the controlled node (targe
t) specifies that a response frame must be returned within 100 ms (see FIG. 23), but if this cannot be done, first, the control node is returned with the INTERIM as the response code, and When it can respond to the received command, it returns the final response frame (Fig. 24).
reference). INTERIM is also used as the first response of the NOTYFY command, as described above.

In the application using the AV / C command set, the device is controlled by being divided into a unit and a subunit.

The next 5 bit Subunit_type is
The type is specified, and the type shown in FIG. 25 is currently specified. Unit is an aggregate device of the subunit (for example,
It is a video tape recorder that has a Tuner and a Tape recorder. If the subunit_type is "I / Fh", it means that the device having the node is a unit.

The next 3 bits are subunit_ID, which is the sub
It represents the ancillary information of unit. The contents of the subunit_ID are shown in FIG. The subunit_type, the subunit_ID
Both can be expanded. The opcode of the next 8it following the subunit_ID is the operation code,
The contents of the AV / C command set are shown.

FIG. 27 shows the allocation of the opration code, which is allocated so that the unit and the subunit do not conflict with each other.

FIG. 28 shows a part of the contents of the unit command. Details of the asynchronous connection command will be described later.

29 and 30 show a part of a VCR subun command used in a VTR (video tape recorder), which defines reproduction, recording, stopping, rewinding, fast-forwarding, etc. necessary for controlling normal operation. is doing.

(AV / C Isochronous Transfer) Next, 101.09 AV / C Isochronous transfer used for transferring so-called stream data such as TS (Transport stream) of digital TV, video and audio data will be described. .

AV / C Isochronous transfer is performed by the LINK layer 101.
Positioned as the upper layer of 02.

AV / C Isochronous transfer is described later in "Plug (p
same as lug) ”is used to manage the connection.

The AV / C isochronous transfer is performed by the AV / C comma described above.
Transfer control is performed by nd set.

AV / C Isochronous transfer is described later in AV / C Isoch.
Data transfer and management are performed by ronous packets.

Next, conn in the AV / C Isochronous transfer
Section management and procedure are explained.

Isichronou in the IEEE1394 I / F standard
s Transfer is the source node (sour
same as ce node or transmitter node) is channe
Only l and bandwidth are acquired, and the transfer destination node (same as the receiving node, receive node, or target node) cannot be specified. Also, there is no means for the receiving node to request data from the transmitting node.

For this reason, in AV / C Isochronous transfer, connection is managed using the concept of a plug (same as plug), and data is transmitted and received.

In the IEEE1394 I / F bus, there are two plugs, an output plug and an input plug.
There is a maximum of 31 each. Isochronous
"0" to "1Eh" are assigned for each. Needless to say, the output plug is a data supply source and a data transfer source, and the input plug is a data reception source and a data transfer destination.

FIG. 31 shows plug c for controlling the plug.
This is the ontrol register, and it is FFFFF0000900h to FFFFF0000 in the register above the IEEE1394 I / F address space.
It is located up to 9FFh and can be accessed from each node on the bus, and each notebook controls these and uses a plug.

Access to the register is asynchronous
It is done by transaction.

Writing to the register can be done freely at the node where the register exists, but for other notes, lock
Must depend on transaction.

The oMPR shown in FIG. 31 is the output master plug reg.
It is a sister and manages all output plugs. The contents are shown in FIG.

Data rate capability is Isochronous da
Maximum speed at which ta is transferred (100MHz, 200MHz, 400MHz)
Indicates. Connection using the output plug of the node
It is necessary for the node that is trying to establish a transfer speed to be within the set value.

[0176] Broadcast channel base is broadcast-o
Isochronous channel when ut connection is established
It is a register to set the base of number. However, the connection is allowed only when there is no point-to-point connection.

Number of output plugs indicates the number of output plugs implemented by the node. Output plug of the notebook
A node that intends to establish a Connection by using must use a plug number within the set value.

The remaining fields are reserved.

The oPCR in FIG. 31 is an output plug control re
It is a gister and manages each output plug.
FIG. 33 shows the contents. On-line is on-line or off-li
Indicates ne.

Broadcast connection counter is broadcastc
If an ast-out connection exists, it will be "1", and if it does not exist, it will be "0".

The point-to-point connection counter is p
Indicates the number of oint-to-point connections (number of nodes receiving data). Channel number indicates the channel number used in the plug. Data rate is the transmission speed of the data transmitted from the plug (100MHz, 200MHz, 400MH
z) is shown.

The Overhead ID indicates the bandwidth in the Isochronous transfer of the data transmitted from the plug. Payload indicates the maximum value (excluding hedaer and CRC) of the number of quadlets of the Isohronous packet transmitted from the plug.

The IMPR of FIG. 31 is an input master plug regi.
It is a ster and manages the entire input plug. The contents are shown in FIG.

Data rate capability is Isochronous da
Maximum speed at which ta is transferred (100MHz, 200MHz, 400MHz)
Indicates. A node that intends to establish a connection using the input plug of the note must use a transfer speed within the set value.

Number of output plugs indicates the number of input plugs implemented by the node. A note that uses the input plug of the note must use a plug number within the set value. The rest is a reservation.

The IPCR in FIG. 31 is an input plug control reg.
It is a sister and manages each input plug. FIG. 35 shows the contents.

On-line indicates on-line or off-line.
The 0ff-line means a case where the plug cannot be used due to power off or the like.

Broadcast connection counter is broadcastc
If an ast-out connection exists, it will be "1", and if it does not exist, it will be "0". point-to-point connection count
er indicates the number of point-to-point connections (the number of nodes receiving data). Channel number is the plug
Indicates the channel number used in. Data rate is the plu
Transmission speed of data transmitted from g (100 MHz, 00 MHz,
400MHz). The remaining fields are reserved.

Next, a procedure for establishing some connections will be described.

FIG. 36 shows a case where a point-to-point connection, that is, a one-to-one connection is established.

A point-to-point connection is a protected connection between input plugs / output plugs where a connection is not established by using one unused channel.
Is to form.

Protected connection means the connectio
Only the person who established n (upper layer software) can release the connection.

The node that wants to establish a point-to-point connect ion first needs the IEEE1394 I / F lsochrnous resource.
The channel number [n] and the required bandwidth [s] are acquired. As mentioned above, this is the channel available register
And to the bandwidth available register, lock transaction
It is implemented by performing (st306.01, st306.02).

If the acquisition is unsuccessful, the channel number [n] that was tried to be acquired, the required band [s] has already been used and is not left, or writing to the register is not permitted. It is conceivable. In this case, the channel number is changed, the band is changed, and the like is retried (st306.10).

If the acquisition is successful, o of the node [A] to be used
The acquisition channel [n] is set for both the utput plug [a] and the input plug [b] of the node [B], the acquisition band [s], and the transfer rate are locked transaction for the oPCR [a] of the node [A]. Use and write. At the same time, oPCR [a] of node [A] and node
[B] iPCR [b] point-to-point connection counte
Write r from “0” to “1” (st306.03, st306.04).

If the writing has failed, it is considered that the plug is being used, etc., and the plug used is changed, and the operation is retried or stopped (st306.10).

When the writing is successful, the outpu of node [A]
point-t between the t plug [a] and the input plug [b] of the node [B]
o-point connection is established, and from output plug [a],
You can stream data.

Next, the overlay connection in the point-to-point connection, that is, the overlay point-to-point connection in which the connection is added on the already established point-to-point connection will be described.

The connection is one used ou
There is no protection between the tput plug and one unused input plug.
To form a connection.

FIG. 37 shows a procedure for establishing this connection. Now, the output of the established node [A]
point-to-between the input plug [b] of the plug [a] and node [B]
Input plug [c] of node [C] on point connection
It should be overlaid.

The node which wants to establish the connection is
It is necessary to know the information on the output side of the already established point-to-point connection, the node ID, the output plug number, etc. This is recognized in a layer higher than the AV / Cisohronous transfer.

First, the channel nu of oPCR [a] of node [A]
Prepare to copy mber to oPCR [c] of node [C] you want to overlay (st307.01), and then add oPCR of node [A].
[A] and point-to-point conn of iPCR [c] of node [C]
Prepare to increment the ection counter (st30
7.02), write these using lock transaction. If the writing fails, the setting value is changed, and the operation is retried or aborted (st307.10).

When writing is successful, overlay point-to
-Point connection is established, output plug [c] is out
You will be able to receive data from put plug [a].

Next, a broadcast- that outputs only one-sidedly
Out connection will be described. The connection is 1
It is to form an unprotected connection to an output plug for which a connection has not been established, by using one unused channel.

FIG. 38 shows the establishing procedure. The connection
Does not set the input side. point-to-point connect
It is close to ion.

First, as with the point-to-point connection, the node that wants to establish a broadcast-out connection is
First, obtain the IEEE1394 I / F lsochrnous resource, channel number [m], and required bandwidth [r] (st308.01, st3
08.02).

If the acquisition fails, the channel number is changed, the band is changed, etc., as described above, and the operation is retried or stopped (st308.10).

When acquisition is successful, o of the node [D] to be used
Put the acquisition channel [m] into the utput plug [d] and node [D]
In oPCR [d], lock the acquisition bandwidth [r] and transfer rate
Write using ransaction. At the same time, o of node [D]
Write the broadcast connection counter of PCR [d] from "0" to "1" (st308.03).

If the writing has failed, as described above,
Change the plug used, retry, or cancel.
(st308.10).

If writing is successful, outpu of node [D]
With t plug [d], it means that broadcast out connection has been established and data can be sent.

Next, overlay broadcast-out connection
Will be described.

The connection is unprotected between the output plug in which the connection has already been established and the channel.
Is to form a unique connection. Figure 3 shows the establishment procedure
9 shows.

Next, the broadcast-in connection will be described.

The connection is an unprotecte between one channel and an input plug where one connection is not established.
It is to form a d connection. The establishment procedure is shown in FIG.

[0215] Finally, overlay broadcast-in connectio
n will be described.

The connection is unprotected between the input plug in which the connection is already established and its channel.
forming a connection. Fig. 41 shows the procedure for establishment.
Shown in.

Next, in the AV / C Isochronous transfer,
Data management of AV / C Isochronous packets will be described.

[0218] Fig. 42 shows the entire format of an AV / C Isochronous packet.

The packet is an IEEE1394 I / F Isochronous
A CIP header is provided in the payload section (data block section) of the packet, and the data content is managed by this.

The CIP header is 1 quadlet or more, and the size is not specified, but here, 2 quadle is often used.
The t-length type will be described.

The two quadles are shown in FIGS. 43 (a) and 43 (b).
t Indicates the format of CIP header.

FIG. 43 (a) is used in MPEG2-TS (digital broadcast bit stream) or the like. Fig. 43 (b)
Is used in DVCR (digital video recorder) and the like. 43 (a) and 43 (b) are the same except FDF and SYT.

FIG. 44 illustrates the contents of FIGS. 43 (a) and 43 (b).

[0224] The SID is the source node ID, and is the source ID of the transmitter node (transmitter). DBS is data bloc
k size and the data block size that follows the CIP header is q
It is expressed in uadlet units. In the IEEE1394 I / F Isochronous transfer, the amount of data that can be transferred at one time is specified to be up to 80% of 125us, and is necessary in order to synchronize with the transfer rate of the transfer data.

FN is a fraction number and represents the number of divisions of the source bucket, and one transfer siz is performed by the DBS.
It is used when the source bucket needs to be divided when data is transferred by limiting e. The receiving node regenerates the source bucket based on this.

QPC is a quadlet padding count and is used when "0" must be added when the data size is not in 32 bit units.

The DBC is a data block counter and is a counter for counting loss.

FMT is a format ID and indicates the format of the source bucket, and the contents are shown in FIG.

FDF and SYT differ depending on the contents of the FMT.

When the FMT value represents "000000" DVCR (digital VCR), the result is as shown in FIG. 43 (a). In this case, the FDF has a stype of 50/60 as shown in FIG. 46, and represents SD (standard mode), HD (high quality mode), SDL (high compression mode), etc. depending on the content. SYT is the time for frame synchronization
It is a stamp, and the lower 16 bits of the cycle time register are embedded and used as appropriate.

[0231] When the FMT value is "100000" MPEG,
When the TSF (time shift field) is “1”, it indicates that the MPEG stream is time-shifted.

In the AV / C Isochronous transfer, connection management and data management are performed as described above.

(AV / C Asynchronous Transfer) Next, the AV / C Asynchronous data of 101.10 for transferring data such as control signals and file data which are asynchronously transferred as needed.
s Explain transfer.

Connec in AV / C Asynchronous transfer
The option management is managed using the concept of the plug as in the AV / Clsochronous transfer described above.

Plugs for AV / C Asynchronous transfer are assigned from "A0" to "BE" (described later).

Transfer control in AV / C Asynchronous transfer is described later in producer Count, limis Count, segment_baff.
It is managed by three resources called er. AV / CA
Data management in synchronous transfer depends on the upper layer application. AV / C Asynchron
In ous transfer, the sender of data, the supplier of data are called producer, and the receiver of data and the transfer destination are called consumer. Also, conn
The one that manages and controls the section is called the controller.

Next, c in the asynchrnoos conection
Describe the management and procedure of onnection.

Connecti in AV / C Asynchronous transfer
on is the asynchronous connection of the AV / C command set described above.
This is done using command (opcode “26h”).

Comma of asynchronous connection command
The formats of nd and response are shown in FIGS. 48 and 49.

The asynchronous connection command is s
It has a hierarchical structure with ubfanction.
The commannd differs depending on the ion. This content is shown in FIG.

ALLOCATE command is a command for allocating consumer plug resources. ALLOCATE_ATTACH co
mmand allocates producer plug resources and cons
This is the command to connect it to umerplug.

[0242] ATTACH command is a producer port cons
This is the command to connect the umer plug. RELEASE comman
d is a command that releases the consumer plug resource.

RELEASE_DETACH command is consumer pl
command to disconnect ug and release producer plug resource
Is.

The DETACH command is the producer port and consu
This is a command to disconnect the mer plug. ADD_ALLOCATE com
mand is a command that overlays the consumer plug with the producer plug.

Next, the basic connection procedure will be described with reference to FIG. As mentioned above, connecti
The on work is done by the contorller.

First, the controller 401.01 is the consumer
Send an ALLOCATE command to (data receiving source) 401.02. consumer 401.02 is response of ALLOCATE command
As a consumer plug a
Returns ddress to controller (st401.91).

Next, the controller 401.01 is ALLOCATE_ATT.
Send the ACH command to the producer (data source) 401.03. In this command, from controller 401.01,
er 401.02 consumer plug address is producer 401.03
Sent to, and as the response, the pr of producer 401.03
The oducer plug address is returned to controller 401.01.

Producer 401.03 is the pl of consumer 401.01
Now that we know the ug address, we'll do some initial setup for sending data.

Finally, controller 401.01 is the ATTACH comm
Send and to consumer 401.02. At this time, controller 40
1.01 is produced by consumer 401.02 and producer 401.03.
Send r plug address.

Consumer 401.02 is the pl of producer 401.03
Now that we know the ug address, we'll do some initial setup for sending data.

With the above, the connection of the plug is completed and the connection is established.

Next, a method of controlling the transfer of data from the producer to the consumer using the connected asynchronous plug will be described with reference to FIG.

The producer has a register called 1imitCount. Further, the consumer has at least one or more producerCounts, and each address is recognized by both when the plug is connected.

LimitCount is written from consumer
It is a register in the producer and a buffer that the consumer can receive (segment buffe that the consumer has
The size of r) is written. There are two normal buffers 1
While writing data from producer to one buffer, read previously written data from another buffer.

[0255] ProducerCount is a register in the consumer written by the producer, and is sent by the producer (c
The amount of data written to the onsumer buffer) is written.

The data sent from the producer is the producer.
Sent from the segment buffer of to the consumer's segment buffer, and both addresses are recognized when the plug connects.

Data to be transferred is performed in units of "frame". Further, the frame may be divided into a plurality of "subframes".

FIG. 53 shows an example of the frame structure.

[0259] To continue or cancel data transmission, use limitCoun
Both are recognized by writing as a mode to a predetermined bit in t and producerCount.

FIG. 54 shows the meaning of the mode value of ProducerCount.

FIG. 55 shows the meaning of the mode value of limitCount.

Next, a data transfer procedure will be described.

In the example of FIG. 52, consumer is 32 KB of segm.
It has at least the ent buffer area and the producer is 34
I have written about the case where you have KB transfer data (1 frame).

The consumer has a size (32 KB in this example) in which data can be received in the limitCount of the producer, and a mode
Write “SEND” (= 5). SEND is a segment of consumer
Indicates that buffer is valid.

[0265] When the producer recognizes that the mode is "SEND", it outputs 32KB of the 34KB of data to be transmitted.
Transfer to consumer.

[0266] At the end of the 32 KB data transmission, pr
The oducer sends 3 to the producerCount of consumer.
Write the value of 2KB and mode "MORE" (= 1). MORE is pro
Indicates that the frame of transfer data for the ducer is not yet finished.

[0267] The consumer recognizes in MORE mode that the transfer data has not been completed, and further sets limitCount to 3
Write mode “SEND” in 2KB. At this time, the segment count is switched from 0 to 1, and the switching of the segment buffer is notified.

The producer consules the remaining 2 KB of data.
Send to mer segment buffer.

After the transfer is completed, the producer
2KB transferred to producerCount of er and mode “LAS
T ”is written. LAST indicates that the frame data of the producer has been successfully transferred, and the next is another frame data.

With the above, the transfer of one frame data is completed.

Next, AV / C com used in the present invention will be described.
Explain mand.

56 to 60 show the graphic data reque
It is a figure explaining st command.

The command is the above-mentioned IEEE1394 asynchronous.
It is an AV / C command that requests transfer of graphic data such as icon data using connection.

The command is from node "A" to node "B"
When issued to, immediately after that, from node “A” to node “B”
If graphic data such as icon data corresponding to another command issued to
Works to transfer data based on the parameters of the operand in the data request command.

56 and 57 show the graphic data reque.
This is the format of st command.

[0276] Operand after opcode, 8bit after reserved
Indicates the asynchronous plug ID of the transfer request source. Also,
Subsequent asynchronous plug offset Hi, asynchronous
plug0ffset Hi, pPortID, pBlt are 48b as described above.
The entire it indicates the plug address. In this command, asyn required for asynchronous connection is
Since the chronous plug ID and the offset address are embedded, the device of the data supply source that received the command, if the device becomes the controller, the asynchronous
It is not necessary to issue the command for acquiring the ous plug (it may be done).

The next 16 bits represent the horizontal size of the transfer-requested data in pixels.

The next 16 bits represent the vertical size of the transfer-requested data in pixels.

The next 4 bits indicate the data format of the data requested to be transferred. FIG. 58 shows the contents.

The next 4 bits are pixeI of the data requested to be transferred.
Indicates the format. FIG. 59 shows the contents.

The next 4 bits represent the data bit width of the data requested to be transferred, and the contents are shown in FIG.

61 to 71, convert comman
It is a figure explaining d.

The command is the above-mentioned IEEE1394 asynchronous.
A comman that uses connection to perform various conversion processes on various devices and transfer them to other arbitrary devices.
d.

The application manages the acquisition of the asynchronous plug and the establishment of the connection for this purpose.

61 and 62 show the format of the convert command. The first 8bi in the operand after opcode
t is application, and the applic of the data to be converted
represents ation.

FIG. 63 shows the contents of the application.
After that, the operand changes depending on the content of the application, but here, the case of ““ 00h ”still image, no application” used in the present invention will be described.

The next 8 bits are input_data_format, which shows the format of the data before conversion, and the contents thereof are shown in FIG.

The next 8 bits are in_data_width,
The bit width of the data before conversion is shown, and its contents are shown in FIG.

The subsequent 16 bits are reserved and are reserved.

The next 16 bits, in_sizex, represents the horizontal size of the pre-conversion data in pixels, the contents of which are shown in FIG. It is partially reserved.

The next 16 bits are in_sizeY, which represents the vertical size of the data before conversion by the number of pixe1, and the content thereof is shown in FIG. It is partially reserved.

The next 8 bits are output_data_format, which shows the format of the data after conversion, and the content thereof is the same as input_data_format in FIG.

The next 8 bits are out_data_width,
The bit width of the converted data is shown in FIG.
Same as in_data_width of.

The subsequent 16 bits are reserved and are reserved.

The next 16 bits, out_sizeX, represents the horizontal size of the converted data in pixels, and the content thereof is the same as out_sizeX in FIG.

The next 16 bits are out_sizeY, which is the vertical size of the converted data expressed in the number of pixels, and its two aspects are the same as in_sizeY in FIG.

The next 16 bits are time and represent the maximum processing time required for the data conversion processing of the command. Figure 6
8 shows the contents.

The next 16 bits are processing and indicate the contents of the conversion processing. FIG. 69 shows the contents.

When the least significant bit is "1", it indicates that the extension has been made. The contents of FIGS. 70 and 71 are shown.

Next, referring to FIGS. 72, 73 and 74, the operation of displaying an icon in the present invention will be described.

FIG. 72 shows the operation of the remote controller 1.5, FIG.
3 is the operation of the TV apparatus 1.1, and FIG. 74 is the operation of the VTR 1.2.

Since the remote controller 1.5 detects the key press,
Key scan is being performed (st601.01, st601.02). T
The V viewer presses the VTR1.2 rewind button on the remote control unit 1.5 in order to rewind the VTR1.2. Then, the rewind corresponding key code is transmitted to the remote controller control unit 1.140 in the TV device 1.1 (st601.03).

Next, it waits for a response from the remote controller control unit 1.140 corresponding to the reception of the transmitted key.

When there is no response for a certain period of time, it is determined that the pressed key has not been normally received by the remote controller control unit 1.140, an error message is displayed on the display unit 1.504, and the process returns to the key scan routine (st601.06).

[0305] If there is a response, the response for key reception
If so, it is determined that the TV device 1.1 and the remote controller are facing each other, and the distance measuring unit 1.502 measures the distance between the remote controller unit 1.5 and the TV device 1.1 (st601.05).

Then, the distance information is transmitted from the distance measuring unit 1.502 to the remote controller control unit 1.140 (st601.07).

Then, again, wait for esponse (st601.0
8) If there is a response, it ends normally and returns to the key scan routine again, and waits for a response from the remote control unit 1.140 corresponding to the reception of the transmitted key.

If there is no response for a certain period of time, it is determined that the distance data has not been normally received by the remote controller control unit 1.140, the display unit 1.504 displays an error, and then returns to the key scan routine (st601.09).

[0309] Next, the operation of the TV set 1.1 which has received the data from the remote control unit 1.5 will be described.

Remote control unit 1.124 in TV device 1.1
First receives the tape rewind key code (st602.0
1), and then receive TV-remote control distance information (st6
02.02).

Remote control unit 1.140 which received these
Transmits the data to the control unit 1.150 (st602.03).

The control unit 1.150 selects the size of the displayed icon from the viewing distance / resolution icon table unit 1.124 based on the received distance information (st602.04).
Using the size as a parameter, the graphic data request c
The ommand is transmitted to the VTR device 1.2 (st602.05).

Then, the rewind command is transmitted (st6
02.06).

From the 1394 i / F unit 1.201, the icon request com
VTR control unit 1.208 which received mand (hereinafter abbreviated as VTR1.2)
First returns a response of "INTERIM" to TV device 1.1, and waits for a subsequent command (st603.01, st603.
02).

Next, when the tape rewind command is received, the VCR unit 1.206 prepares for the rewind operation (s
t603.04).

Then, the icon data of the requested size corresponding to the rewind command is the icon data storage unit 1.
It is searched whether or not it is in 205 (st603.05), and if there is, it prepares to transfer the icon data of the optimum size (s
(t603.06), if not, prepare for transfer of the icon having the size closest to the optimum size (st603.07).

When the icon data to be transmitted to the TV device 1.1 is prepared, the VTR1.2 will display ALLOCATE command, ALLOC
ATE_ATTACH command is issued and TV device 1.1 consumes
er_plug "A" from VTR1.2 itself producer_plug
“B” is acquired and connection is established (st603.08).

Thus, when the data is ready to be transferred, the rewind start preparation is completed, and the rewind operation is started (st603.09), the producer_pl of the VTR unit 701.2 is started.
Icon data is transferred as one frame data from ug "B" to consumer_plug "A" of TV device 1.1.
(st603.10).

In the TV device 1.1, the ALLO from the VTR section 1.2
When receiving CATE command- (st602.51), consumerJlug
Allocate “A” and prepare to receive the icon data (st602.52).

Icon data reception is started (st602.5
3), confirm "LAST" in the producerCount register,
When the end of data can be confirmed (st602.54), segment bu
Transfer the icon data in ffer to the still image buffer (st602.55).

Next, the display composition and control section controls the display position of the icon data, combines it with other display data, and displays it on the display (st602.56).

On the other hand, in the VTR1.2 section, when transmission of icon data is completed (st603.51), DETTACH comm
and, RELEASE_DETTACH command, TV device 1.1 and V
Disconnect the connection of TR section 1.2 and open the asynchronous plug (st603.52).

In this way, the rewinding operation of the VTR device and the icon display are performed.

(Second Embodiment) Next, a second embodiment of the present invention will be described. FIG. 7 is an overall view of the second embodiment of the present invention.
5 shows.

The TV device 1.1 is the same as that of the first embodiment. The remote control unit 1.5 is the same as that of the first embodiment.

701.2 is a video recorder (hereinafter abbreviated as VTR), which is used for recording TV, other images and audio data,
Play. Also, device information data for the VTR operation can be recorded and read, and the data is
TV receiver inside the VTR, and 1394 Buss described later
You can input and output through 1.1.

701.3 is a 1394-optical repeater unit,
It has a function of converting an electric signal of EEE1394 standard into an optical signal and converting an optical signal into an electric signal. According to the IEEE1394 standard, the cable length is specified to be 5 m, but the distance can be extended by using the 1394-optical repeater.

701.4 is a personal computer section (hereinafter
(Abbreviated as PC section), and in the present invention, 1394Bus s1.1
Through this, data is transmitted and received, and data is converted.

In this embodiment, the TV device 1.1 and the VTR unit 70
1.2 is installed at a place distant from the distance, and the optical fiber cable s1.2 is connected between them.

FIG. 76 is a diagram showing details of the VTR unit 701.2.

1394 i / F unit 1.201, 1394 Iso buffer unit 1.2
02, 1394plug buffer section 1.203, configuration ROM section 1.
204, icon data storage section 1.205, VCR section 1.206, VTR
The control unit 1.207 is the same as in the first embodiment.

Reference numeral 701.208 is a flash ROM section, which is a non-volatile rewritable memory, which can be rewritten by the control section through the internal Bus s1.201.
Through s1.1, it can be rewritten with data from other devices. The flash ROM stores a program for operating the VTR control unit 1.207, converted icon data, and the like.

FIG. 77 is a diagram showing details of the PC 701.4.

1394 i / F unit 701.401, 1394 plug buffer unit 7
01.402 is the aforementioned 1394 i / F section 1.201, 13941so buffer section
It is the same as 1.203, controlled by the PC section described later,
Sends and receives data to and from other devices.

The configuration ROM section 701.403 uses the above-mentioned conf.
It has the same function as the iguration ROM section 1.204 and stores device information unique to the PC.

701.404 is a PC unit, and has various processing functions such as data conversion, search, mail transfer, document creation, and the like.
In addition to VTR1.2, it has a control function for connected devices such as printers and scanners, and can also perform enlargement / reduction processing and compression / decompression processing of data input through the 1394 I / F.

Next, with reference to FIG. 78, the flow of the operation for displaying the icon in the second embodiment will be described. FIG. 78 shows the operation of the VTR unit 701.2 in the second embodiment.

In the operation of the second embodiment, the remote controller 1.
From the operation of 5, the TV device 1.1 finds the optimum icon size and sends it to the VTR unit 701.2 for graph
The procedure up to issuing the c data request command and waiting for ALLOCATE is the same as in the first embodiment, FIG. 72 and FIG. 73.

From 1394 I / F section 1.201, the icon request com
VTR control unit 1.208 which received mand (hereinafter abbreviated as VTR1.2)
First returns a response of "INTERIM" to the TV device 1.1, and waits for a subsequent command (st801.01, st801.
02).

Next, when the tape rewind command is received, the VCR unit 1.206 prepares for the rewind operation (s
t801.03, st801.04).

Then, the icon data of the required size corresponding to the rewind command is the icon data storage unit 1.
It is searched whether or not it is in 205 (st801.05), and if there is, it prepares to transfer the icon data of the optimum size (s
Jump to st603.08) and st603.08, and after that, follow the same operation as above (st801.07).

The icon data of the requested size is VT
R part 701.2 does not exist in icon data storage part 1.205 or flash ROM 701.208, or VT
If conversion is not possible within R section 701.2, VTR section 701.2 (V
TR control unit 1.207) is connected to the device connected to 1394 I / F.
To find a device that supports ver t command,
Set ctype to SPESIFIC INQUARY
Broadcast (st801.08) and wait for accept response
(st801.09).

If there is no accept, there is no device that can convert the icon size among the devices connected to the 1394 I / F. Therefore, as in the first embodiment, the transfer preparation of the icon closest to the optimum size is performed ( It jumps to st801.10) and st603.08, and after that, the same operation as described above is followed (st801.11).

In this embodiment, the PC 701.4 has this function, and the above-mentioned conversion is performed via the optical repeater unit 701.3.
PC 701.4 which received the support inquiry of command,
Returns acccept response (if multiple devices accept
When receiving the response of, use the device that received the earliest. ).

Upon receipt of the accept, the VTR unit 701.2 first uses ALLOCATE command and ALLOCATE_ATTACH command,
Consumer_plug “D” from PC, pr from VTR701.2 itself
oducer_plug “B”, get and establish connection (st
801.12).

Then again, ALLOCATE command, ALLOCATE_
ATTACH command, TV_1.1 producer_plug
“A” and producer_plug “E” are acquired from PC 701.4 and connection is established (st801.13).

Further, ALLOCATE command and ADD
_OVERLAY command is used to produ
cer_plug "C" is acquired, PC 701.4, producer_plug
OVERLAY connection is established between “E” (st801.14).

Thus, data transfer becomes possible and VT
The R section 701.2 issues a convert command to the PC 701.4 (st801.02).

First, the producer_plug of the VTR unit 701.2
Icon data is transferred as one frame data from "B" to producer_plug "D" of PC 701.4 (st8
01.16). When transmission of icon data before enlargement is completed (st8
01.17), DETTACH command, RELEASE_DETTACH command
Then, disconnect the connection between TV device 1.1 and PC 701.4, and then asy
Open the nchronous plug (st801.18).

The icon data is converted in PC 701.4.
(Enlarged / reduced) processed, producer_plug of PC 701.4
From "E", producer_ in the plug buffer of TV device 1.1
It is sent to the segment buffer of plug “A”.

In the TV device 1.1, as in FIG. 73 of the first embodiment, when "LAST" in the producerCount register is confirmed and the end of the data can be confirmed, the icon data in the segment buffer is transferred to the still image buffer. .

Also in this case, as in FIG. 72 of the first embodiment, the display composition and control section controls the display position of the icon data, combines it with other display data, and displays it on the display.

On the other hand, this converted icon data is
VTR unit 701.2 producer_plug "D" segmentbuffer
It is also sent to (st801.16, st801.19).

Also in the VTR unit 701.2, the producerCoun
When "LAST" in the t register is confirmed and the end of the data can be confirmed, the converted icon data received in the segment buffer is saved in the flash ROM 701.208 (st801.2
0, st801.21), VTR block 701.2 and PC with DETTACH command
Disconnect the 701.4 overlay connection and use asynchronous pl
Release ug (st801.22).

When the end of the data can be confirmed, the connection between the TV device 1.1, the VTR unit 701.2 and the PC 701.4 is disconnected, the asynchronous plug is opened, and the operation ends (st801.2
2).

In this way, when the icon data saved in the flash ROM receives the same icon data transfer request as described above next time, it does not issue a conversion request to the PC 701.4 and the VT
Transferred from flash ROM 701.208 of R section 701.2 itself.

In this way, the rewinding operation of the VTR device and the icon display are performed.

(Other Embodiments) In the present invention, IEEE1394 is used as a network for connecting each device, which is I2C Bus, Ethernet (R), U
Others such as SB may be used. The transmission medium is not limited to an electric signal, but may be an optical fiber cable, infrared rays, radio waves, or the like. It is also possible to connect a plurality of networks instead of one type.

In the present invention, icon transfer is performed by V
Although the TR rewinding operation is described, it is possible with respect to the devices, operations, and operations of all those connected to the network.

For example, AV equipment such as TV tuner, FM tuner, audio cassette recorder, DVD device, amplifier, PC, scanner, FAX, telephone, modem,
Office appliances such as display monitors, printers, copiers, home appliances such as refrigerators, washing machines, irons, etc.,
These include home network systems such as door phones, bathroom management systems, and crime prevention systems.

In the present invention, the display device is used in the TV device, but it may be a single display device.

In the present invention, a PC is used for conversion of icon data, but this is connected to a network and has another device (other TV device,
Printer, etc.).

[0363]

As described above, according to the present invention, the graphical data and the icon corresponding to the resolution and size of the TV are displayed.
By transferring and displaying from the device, it is possible to provide the user with a high-quality display that is easier to use.

Further, according to the present invention, when the remote controller is operated, the viewing distance of the display device and the viewer is measured, and the graphical data and the icon corresponding to the viewing distance are transferred from the device and displayed, so that the user can In contrast, it is possible to provide a high-quality display that is easier to use.

Further, according to the present invention, by providing the icon enlarging means and transferring the graphical or icon corresponding to the setting from the device and displaying it, it is possible to provide the user with an easier-to-use and high-quality display. You can

Also, the optimum display graphical data and icon do not exist in the requested device for which the data is requested from the display device, and the appropriate display size converting means exists in the device. Third connected to the network even if there is no
If there is a more appropriate display size conversion means in the device, first, the graphical data and the icon are transferred from the requested device to the third device, and then converted to the optimum size and transferred to the display device. However, by displaying, even if the graphical data of the optimum display size does not exist in the requested device, a high-quality display can be provided.

[Brief description of drawings]

FIG. 1 is a block diagram showing an entire display control device according to a first embodiment of the present invention.

FIG. 2 is a block diagram illustrating details of the TV apparatus according to the first embodiment of this invention.

FIG. 3 is a block diagram illustrating details of a VTR unit according to the first embodiment of the present invention.

FIG. 4 is a block diagram illustrating a remote controller according to the first embodiment of the present invention.

FIG. 5 is a diagram for explaining an embodiment of the present invention and a hierarchical structure of IEEE1394.

FIG. 6 is an explanatory diagram of an IEEE1394 Isochronous management register according to the embodiment of this invention.

FIG. 7 is an explanatory diagram of an IEEE 1394 address space according to the embodiment of this invention.

FIG. 8: Embodiment of the present invention, Configuration of IEEE1394
Illustration of the entire ROM

FIG. 9: Embodiment of the present invention, Configuration R of IEEE1394
Illustration of OM info_block

FIG. 10: Embodiment of the present invention, Configuratio of IEEE1394
Illustration of n ROM root_directry

FIG. 11: Embodiment of the present invention, Configurat i of IEEE1394
Illustration of hierarchical structure of on ROM

FIG. 12: Embodiment of the present invention, Configuratio of IEEE1394
Illustration of n ROM key type

FIG. 13: Embodiment of the present invention, Configuration of IEEE1394
Illustration of ROM node_unit_id_leaf

FIG. 14: Embodiment of the present invention, Configuratio of IEEE1394
Illustration of n ROM unit_directry

FIG. 15 is an explanatory diagram of an arrangement of IEEE1394 and FCP registers according to an embodiment of the present invention.

FIG. 16 is an explanatory diagram of an embodiment of the present invention, IEEE1394, FCP packet format.

FIG. 17 is an explanatory diagram of an embodiment of the present invention, IEEE1394, FCP frame format.

FIG. 18 is an example of the present invention, IEEE1394, c of FCP frame
Illustration of ts

FIG. 19 is an explanatory diagram of an AV / C command frame format according to the embodiment of this invention.

FIG. 20 is an explanatory diagram of an AV / C response frame format according to the embodiment of this invention.

FIG. 21 is an explanatory diagram of an embodiment of the present invention, AV / C command type.

FIG. 22 is an embodiment of the present invention, AV / C command response c
Illustration of ode

FIG. 23: Example of the present invention, AV / C Immediate transact
Illustration of ion

FIG. 24: Example of the present invention, AV / C Deferred transacti
Illustration of on

FIG. 25 is an embodiment of the present invention, AV / C command, subunit_
Illustration of type

FIG. 26 is an embodiment of the present invention, AV / C command, subunit_
Illustration of ID

FIG. 27 is an embodiment of the present invention, AV / C command, operation
Illustration of code

FIG. 28: Example of the present invention, AV / C command, unit com
Illustration of mand

FIG. 29: Example of the present invention, AV / C command, VCR subun
Illustration of it command

FIG. 30: Example of the present invention, AV / C command, VCR subun
Illustration of it command subfanction

FIG. 31. Embodiment of the present invention, AV / C isochronous, plug c
Illustration of ontrol register

FIG. 32 is an embodiment of the present invention, AV / C isochronous, output
Illustration of master plug register

FIG. 33 shows an embodiment of the present invention, AV / C isochronous, output
Illustration of plug control register

FIG. 34 is an embodiment of the present invention, AV / C isochronous, input
Illustration of master plug register

FIG. 35 is an embodiment of the present invention, AV / C isochronous, input
Illustration of plug control register

FIG. 36 is an example of the present invention, AV / C isochronous, pointo
-to-point connection explanatory diagram

FIG. 37. Embodiment of the present invention, AV / C isochronous, overla
Illustration of y ptp connection

FIG. 38. Embodiment of the present invention, AV / C isochronous, broadc
Illustration of ast-out connection

FIG. 39 is an embodiment of the present invention, AV / C isochronous, overla
Illustration of y broadcast-out connection

FIG. 40. Example of the present invention, AV / C isochronous, broadc
Illustration of ast-in connection

FIG. 41 shows an embodiment of the present invention, AV / C isochronous, overla
Illustration of y broadcast-in connection

42 is an explanatory diagram of an embodiment of the present invention, AV / C isochronous, and CIP packet

43 (a) and (b) are examples of the present invention, AV / C isochr.
Illustration of onous and CIP packet header

FIG. 44 is an example of the present invention, AV / C isochronous, CIP pa
Illustration of cket header

FIG. 45: Example of the present invention, AV / C isochronous, CIP pa
Illustration of cket and FMT

FIG. 46 is an example of the present invention, AV / C isochronous, CIP pa
Illustration of cket and FDF

[FIG. 47] Example of the present invention, AV / C isochronous, CIP pa
Illustration of cket and FMT

FIG. 48 is an embodiment of the present invention, AV / C asynchronous transfer, c
Illustration of ommand frame

FIG. 49 Embodiment of the present invention, AV / C asynchronous transfer, r
Illustration of esponse frame

FIG. 50 is an embodiment of the present invention, AV / C asynchronous transfer, c
Illustration of the contents of omand

FIG. 51. Embodiment of the present invention, AV / C asynchronous transfer, c
Illustration of onnection procedure

FIG. 52 is an embodiment of the present invention, AV / C asynchronous transfer,
Illustration of data transfer procedure

FIG. 53 is an embodiment of the present invention, AV / C asynchronous transfer,
Diagram of an example of the frame structure of data

54 is an embodiment of the present invention, AV / C asynchronous transfer, p
Illustration of roducerCount

FIG. 55 is an embodiment of the present invention, AV / C asynchronous transfer, l
Illustration of imitCount

FIG. 56 is a first embodiment of the present invention, AV / C data reques
Illustration of t and command frame

57 is a first embodiment of the present invention, AV / C data request,
Illustration of response frame

58] A first embodiment of the present invention, AV / C data request, d
Illustration of ata_format

[FIG. 59] A first embodiment of the present invention, AV / C data request, p
Illustration of ixe_format

FIG. 60 is a first embodiment of the present invention, AV / C data request, d
Illustration of ata_width

[FIG. 61] A second embodiment of the present invention, AV / C data convert, c
Illustration of ommand frame

62 is a second embodiment of the present invention, AV / C data convert,
Illustration of response frame

[FIG. 63] A second embodiment of the present invention, AV / C data convert, a
Illustration of pplication

64 is a second embodiment of the present invention, AV / C data convert,
Illustration of input_data_format

FIG. 65 is a second embodiment of the present invention, AV / C data convert,
Illustration of in_data_width

66 is a second embodiment of the present invention, AV / C data convert,
Illustration of in_sizeX

67 is a second embodiment of the present invention, AV / C data convert,
Illustration of in_sizeY

68 is a second embodiment of the present invention, AV / C data convert,
Illustration of time

[FIG. 69] A second embodiment of the present invention, AV / C data convert, p
Illustration of rocesing

[FIG. 70] A second embodiment of the present invention, AV / C data convert,
Illustration of resize

71 is a second embodiment of the present invention, AV / C data convert, c
Illustration of ompress

FIG. 72 is an explanatory diagram of an operation of displaying an icon in the present invention.

FIG. 73 is an explanatory diagram of an operation of displaying an icon in the present invention.

FIG. 74 is an explanatory view of an operation of displaying an icon in the present invention.

FIG. 75 is an overall view of a second embodiment of the present invention.

FIG. 76 is a diagram showing details of the VTR section.

FIG. 77 is a diagram showing details of the PC.

FIG. 78 is a diagram showing the operation of the VTR unit in the second embodiment.

FIG. 79 is a diagram illustrating an example of a conventional display example.

FIG. 80 is a diagram of another example for explaining a conventional display example.

FIG. 81 is a view of still another example for explaining a conventional display example.

[Fig. 82] Fig. 82 is a view for explaining a conventional display example and yet another example.

[Explanation of symbols]

1.1 TV device 1.1a TV reception part 1.1b Display and control part 1.2 VTR 1.4 PC 1.5 Remote control part 1.101 Antenna device 1.102 Tuner part 1.103 Demultiplex part (hereafter Demux part) 1.104 Switch part 1.105 TS Decode part 1.106 Data buffer part 1.107 TV reception control Section 1.120 1394i / F section 1.121 1394 Isochronous buffer section (Iso buffer section) 1.122 1394 asynchronous plug buffer section (plug buffer section) 1.123 Icon data buffer section 1.124 Viewing distance / icon size table section 1.125 configuration ROM 1.126 Still image data buffer section 1.127 DVCR Decode section 1.201 1394 i / F section 1.202 1394 Isochronous buffer section 1.203 plug buffer section 1.204 configuration ROM 1.205 Icon data storage section 1.206 VCR section 1.207 VTR control section 1.130 Display synthesis control section 1.131 Display unit 1.132 Voice synthesis and control section 1.133 Voice output Part 1.140 Remote control part 1.150 Control part 1.501 Key button 1.502 Distance measuring part 1.503 Data transmitting / receiving part 1.504 Display part 1.505 Remote control unit 101.01 Physical layer 101.02 Link layer 101.03 Transaction layer 101.04 Bus management layer 101.06 SBP-2 101.07 FCP 101.08 AV / C command 101.09 AV / C Isochronous 401.01 controller 401.02 consumer (data receiver) 401.03 producer (data sender) 701.2 VTR 701.3 1394-optical repeater 701.4 Personal computer (abbreviated as PC below) 701.208 flash ROM 701.401 1394 i / F 701.402 1394plug buffer 701.403 configuration ROM 701.404 PC sl.1 Network s1.2 Optical fiber cable s1.101 Internal Bus 1.201 Internal Bus

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Claims (16)

[Claims] 1. An electronic device having a device that performs a certain event or operation and a display unit that displays according to the event or the action, when displaying the same event or action, the display unit And a display device for displaying the phenomenon according to the distance between the viewers of the display means and the resolution of the display means. 2. The display device according to claim 1, wherein the distance between the display means and the viewer of the display means is the display means and remote control means controlled by the hand of the viewer. 3. The display device according to claim 1, wherein the expression means for expressing the certain event or action is an icon. 4. The icon and design size of the event and action selection means according to the distance between the display means and the viewer of the display means and the resolution of the display means. The display device according to claim 1. 5. The display device according to claim 1, wherein the network is based on the IEEE1394 standard. 6. An electronic device having a display means for displaying according to the event and the operation issues a display data request for the event and the operation to the device performing the event and the operation,
2. The device that performs the event or action transmits the display data based on the request to an electronic device that has a display unit that displays according to the event or action, and displays the electronic device. Display device. 7. When a display data request for the event or action is issued to the device performing the event or action from an electronic device having a display unit for displaying the event or action, Based on the request, the device that performs the event or operation transmits the display data to the third electronic device connected to the network, and the third device performs conversion for more appropriate display, 2. The display device according to claim 1, wherein the converted converted display data is transmitted to an electronic device having a display means for displaying in accordance with an event or an operation and displayed. 8. The display data storage means for transmitting and storing the converted display data converted and generated by the third electronic device to the device itself performing the event or operation. The display device according to claim 1. 9. In a system in which a device performing a certain event or operation and an electronic device having a display means for displaying according to the event or the operation are connected via a network, display is performed for the same event or action. In the case of carrying out the above, there is a selection means for selecting the event or the action display according to the distance between the display means and the viewer of the display means and the resolution of the display means, and the event A display system characterized by displaying. 10. The display system according to claim 9, wherein the distance between the display means and the viewer of the display means is the display means and remote control means controlled by the hand of the viewer. 11. The display system according to claim 9, wherein the means for expressing the certain event or action is an icon. 12. The icon and design size of the event and action selection means according to the distance between the display means and the viewer of the display means and the resolution of the display means. The display system according to claim 9. 13. The display system according to claim 9, wherein the network is based on the IEEE1394 standard. 14. An electronic device having a display means for displaying in accordance with the event or action issues a display data request for the event or action to the device performing the event or action, and 10. The display according to claim 9, wherein the device that performs an operation transmits the display data based on the request to an electronic device that has a display unit that displays according to the event and the operation, and displays the electronic device. system. 15. When a display data request for the event or action is issued to the device performing the event or action from an electronic device having a display unit for displaying the event or action, Based on the request, the device that performs the event or action transmits the display data to the third electronic device connected to the network, and the third device performs conversion for more appropriate display, 10. The display system according to claim 9, wherein the converted display data is transmitted to an electronic device having a display means for displaying in accordance with an event or an operation and displayed. 16. A display data storage means for transmitting and storing the converted display data converted and generated by the third electronic device to the device itself performing the event or operation. The display system according to claim 9.