WO1999059309A1 - Method and apparatus for setting connections between a number of information processing apparatuses - Google Patents
Method and apparatus for setting connections between a number of information processing apparatuses Download PDFInfo
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- WO1999059309A1 WO1999059309A1 PCT/JP1999/002454 JP9902454W WO9959309A1 WO 1999059309 A1 WO1999059309 A1 WO 1999059309A1 JP 9902454 W JP9902454 W JP 9902454W WO 9959309 A1 WO9959309 A1 WO 9959309A1
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- information processing
- connection
- processing apparatus
- processing apparatuses
- bus
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/40—Network security protocols
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/40052—High-speed IEEE 1394 serial bus
- H04L12/40058—Isochronous transmission
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/2803—Home automation networks
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/2803—Home automation networks
- H04L12/2838—Distribution of signals within a home automation network, e.g. involving splitting/multiplexing signals to/from different paths
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/40052—High-speed IEEE 1394 serial bus
- H04L12/40065—Bandwidth and channel allocation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/40052—High-speed IEEE 1394 serial bus
- H04L12/40117—Interconnection of audio or video/imaging devices
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/45—Network directories; Name-to-address mapping
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/14—Session management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/2803—Home automation networks
- H04L12/2807—Exchanging configuration information on appliance services in a home automation network
- H04L12/2809—Exchanging configuration information on appliance services in a home automation network indicating that an appliance service is present in a home automation network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
- H04L69/32—Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
- H04L69/322—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions
- H04L69/329—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions in the application layer [OSI layer 7]
Definitions
- the present invention relates to a connection setting apparatus and method and, more particularly, to such apparatus and method wherein a data input/output connection setting or settings between a number of information apparatuses connected to a network can be easily performed.
- VTRs video tape recorders
- HDDs hard disk drives
- MDs Mini Disk (trademark) devices
- information processing apparatuses may have a digital interface operable in accordance with a predetermined standard, such as an IEEE 1394 protocol, such
- connection setting operation may need to be performed in each ofthe information processing apparatuses. Performing such connection setting operation may be time consuming and/or troublesome for the user.
- Television receivers, personal computers, network terminals and/or the above-mentioned information processing apparatuses may be connected by use of a digital interface so as to form a home network.
- a digital interface so as to form a home network.
- a user wishes to connect a plurality ofthe devices so as to enable data transfer between desired ones of such devices, the user may have to perform the above-mentioned time consuming and/or troublesome setting operation.
- An object ofthe present invention is to enable an information processing apparatus coupled to a network having a plurality of information processing apparatuses coupled thereto to be operated so as to perform input/output connection setting 42 ofthe other information processing apparatuses connected to the network.
- an apparatus is provided for connecting a number of information processing apparatuses together in a desired manner in
- the apparatus comprises a device for generating a signal representative of a graphical interface for display on a display unit which indicates any available connections between the information processing apparatuses connected to the digital bus, a device for receiving signals from a user indicative of a desired connection selected from among the available connections indicated on the graphical , interface and for forming a control signal therefrom, and a device for generating a signal for
- control signal therefrom, in which the desired connection signal is obtained from an input provided by a user with the use ofthe graphical interface; and a device for generating a signal for causing the desired connection between the corresponding information processing apparatuses to be established in accordance with the control signal.
- Fig. 1 is a diagram of a system in accordance with an embodiment ofthe present invention
- Fig. 2 is a diagram of a connection manager ofthe system of Fig. 1;
- Fig. 3 is a functional diagram ofthe connection manager of Fig. 2;
- Fig. 4 is a diagram of a cycle structure of data transmission between devices connected in accordance with IEEE 1394;
- Fig. 5 is a diagram to which reference will be made in explaining a structure of address space of CSR architecture;
- Fig. 6 is a diagram to which reference will be made in explaining locations, names and functions of essential CSRs;
- Fig. 7 is a diagram of a ROM format;
- Fig. 8 is a diagram of "bus_info_block”, "root_directory” and "unit directory”;
- Fig. 9 is a diagram of an arrangement of plug control registers (PCRs).
- Figs. 10A to 10D are diagrams of configurations for oMPR, oPCR iMPR, and iPCR;
- Fig. 11 is a diagram of plugs, plug control registers and isochronous channels;
- Fig. 12 is a flowchart to which reference will be made in explaining an
- Fig. 13 is a diagram of an arrangement of an ID-device table
- Fig. 14 is a diagram of an arrangement of a node-ID table
- Fig. 15 is a diagram of a graphic interface for input/output connection
- Fig. 16 is a flowchart to which reference will be made in explaining an operation
- Fig. 17 is a flowchart to which reference will be made in explaining an input/output connection operation
- Fig. 18 is a flowchart to which reference will be made in explaining a cancellation of input/output connection operation
- Fig. 19 is a diagram of a graphic interface for input/output connection designation which indicates that a VTR and a set-top box cannot be connected to each other due to a difference in signal formats;
- Fig. 20 is a diagram of a graphic interface for input/output connection designation.
- Fig. 21 is a diagram of an arrangement of an ID-name table.
- FIG. 1 illustrates a network 99 having a connection manager 1, an HDD 4, a
- a remote controller 2 is adaptable to receive input commands from a user by use of crisscross keys or ten cluster keys contained on the remote controller and to transmit an infrared light signal corresponding thereto.
- the connection manager 1 may receive the infrared light signal transmitted from the remote controller 2 and control the information processing apparatuses or devices connected to the network 99 in accordance with an input/output connection command represented by the received light signal. Additionally, the connection
- manager 1 may supply an output signal to a monitor 3 so as to cause information to be
- the devices shown in Fig. 1 may form or be considered nodes or accessible units in accordance with a prescription of LEEE 1394 and in accordance with TEC 61883 prescribing audio visual (AV) data transmission on IEEE 1394.
- AV audio visual
- devices which do not conform to a predetermined standard such as LEC 61883 may not be controlled by the connection manager 1.
- Fig. 2 illustrates internal sections ofthe connection manager 1.
- An infrared signal receiving section 11 may receive the infrared light signal transmitted from the remote controller 2, demodulate the received infrared light signal to obtain a control signal, and transfer the control signal to a central processing unit (CPU) 12 via an internal bus 18.
- the CPU 12 may
- ROM read-only memory
- RAM random-access memory
- the ROM 16 may have stored therein the program used by the CPU 12 and fixed data which may be utilized in calculation parameters.
- the RAM 13 may have stored
- the interface 14 may be an input/output interface in accordance with LEEE 1394 to which the IEEE 1394 serial buses 9-1 and 9-3 are connected.
- a monitor control section 15 may receive data from the CPU 12 or stored data from the RAM 13, may convert the same into a video signal, and may supply the video signal to the monitor 3 so as to be displayed thereon.
- An electrically erasable programmable read-only memory (EEPROM) 17 may be utilized to store company names and device names corresponding to company identification codes (LDs) and chip LDs, and other information which should be stored even after power is turned off.
- LDs company identification codes
- chip LDs chip LDs
- a device name setting section 21 may set names previously stored or inputted by a user to the devices identified with node identification codes (LDs) connected to the network 99.
- An input/output connection setting section 22 may input settings of input/output connections ofthe devices connected to the network 99.
- An input/output connection setting execution section 23 may execute a setting of input/output connections ofthe devices connected to the network 99 based on the device input/output connection setting inputted by the input/output connection setting section 22.
- a display control section 24 may cause to be displayed on the monitor 3 information needed from a user to input a necessary or respective setting, such as information pertaining to the state of input/output connections ofthe devices connected to the network 99.
- An input/output connection state memory section 25 may store therein information pertaining to the state of input/output connections ofthe devices connected to the network 99.
- a device function checking section 26 may ascertain whether each ofthe devices connected to the network has a predetermined function such as a function operable in accordance with LEC 1883.
- a cycle structure of data transmission between the devices connected in accordance with LEEE 1394 is illustrated in Fig. 4.
- data may be divided into packets and transmitted in a time division manner based on a cycle of 125 ms.
- Such cycle may be produced by a cycle start signal supplied from a node having a cycle master function (which may be one ofthe devices shown in Fig. 1).
- a band or time unit for transmission of isochronous packets may be secured from the start of each cycle.
- data may be transmitted in a certain time period, however, transmitted data may be lost if a transmission error occurs since no procedure for protecting or recovering the data is provided.
- some ofthe nodes which have secured the bus as a result of arbitration may transmit asynchronous packets.
- an acknowledgement signal may be sent to the transmitting device to acknowledge receipt ofthe data and, in the absence thereof, the transmitting device may re-send the data.
- the receiving device may send a retry signal to the transmitting device whereupon the transmitting device may re-send the data.
- reliable data transmission may be provided.
- transmission timing may not be constant.
- nodes If certain nodes perform isochronous transmission, these nodes should be compatible with an isochronous function and at least one of such nodes should have a cycle master function. Further, at least one ofthe nodes connected to the LEEE 1394 serial buses 9-1 to 9-4 should have an isochronous resource manager function.
- LEEE 1394 conforms to the control and status register (CSR) architecture which has a 64-bit address space and which is prescribed in ISO/LEC13213 or ANSI/LEEE1212.
- CSR control and status register
- the structure ofthe CSR architecture address space is illustrated in Fig. 5.
- the upper 16 bits form a node LD representing one ofthe LEEE 1394 nodes and the other 48 bits are used to designate address space assigned to the node.
- the upper 16 bits are separated into a bus
- the space prescribed with the upper 20 bits is divided into an initial register space used for registers specific to 2048-byte CSRs, registers specific to IEEE 1394, and the like, a private space, an initial memory space, and so forth, while the space prescribed with the lower 28 bits is used as a configuration read-only memory (ROM), an initial unit space for use specific to the nodes, plug control registers (PCRs), such as defined in LEC 61883, and so forth, if an initial register space is prescribed with the upper 20 bits.
- ROM configuration read-only memory
- PCRs plug control registers
- Offset addresses, names and functions of essential CSRs are illustrated in Fig. 6.
- the offsets shown in Fig. 6 are addresses offset from address FFFFFOOOOOOOh (in which "h” denotes hexadecimal notation) from the start ofthe initial register space.
- a bandwidth available register having offset 220h indicates a band assignable to isochronous communication. Only the value ofthe bandwidth available register with respect to
- each node may have the CSRs shown in Fig. 5, but only the bandwidth available register ofthe isochronous resource manager may be effective. In other words, basically, only the isochronous resource manager has the bandwidth available register.
- a maximum value may be stored when no band is assigned for isochronous communication and the value may be reduced each time a band is assigned.
- a bit having a value of zero may indicate that the corresponding channel has been assigned. Only the channel available registers ofthe node operating as an isochronous resource manager are effective.
- Each ofthe nodes which is an access unit on LEEE 1394 can
- Unit directories may designate software version or locations with respect to these units. Although the locations of "bus_info_block” and “root_directory” may be fixed, the locations ofthe other blocks may be designated by offset addresses.
- Fig. 8 Details ofthe "bus_info_block", "root_directory” and “unit_directory” are illustrated in Fig. 8.
- An LD number indicating a manufacturer of a device may be stored in "Company lD” ofthe “Bus_info_block”.
- An ID unique to the device (which is only assigned to the respective device) may be stored in "ChipJLD” ofthe “Bus info block”.
- each node has plug control registers (PCRs) with addresses 900h to 9FFh in the initial unit space shown in Fig. 5. This may be substantiation ofthe "plug" concept for formation of a signal path logically analogous to an analog interface.
- An arrangement ofthe PCRs is illustrated in Fig. 9.
- the PCRs may include an output plug control register (oPCR) representing an output plug, an input plug control register (iPCR) representing an input plug, an output master plug register (oMPR) and an input master plug register (iMPR) indicating information about output and input plugs specific to the device.
- oPCR output plug control register
- iPCR input plug control register
- iMPR output master plug register
- iMPR input master plug register
- Each device may have a single oMPR and a single iMPR, but may have a plurality of oPCRs and a plurality of iPCRs corresponding to the plugs according to the
- Fig. 9 there are thirty one oPCRs and thirty one iPCRs.
- the flow of isochronous data may be controlled by operating the registers corresponding to the plugs.
- Configurations of oMPR, oPCR, iMPR, and iPCR are respectively illustrated in Figs. 10A-10D.
- a code indicating the maximum transmission rate at which the corresponding device can transmit or receive data may be stored in the 2-bit "data rate capability" portion located in the most significant bit (MSB) side ofthe oMPR and iMPR.
- the number of a channel used for a broadcast output may be stored in the 6-bit "broadcast channel base" ofthe oMPR.
- a value indicating the number of output plugs ofthe device (that is, the number of oPCRs) may be stored in the 5-bit "number of output plugs" on the LSB side ofthe oMPR.
- a value indicating the number of input plugs ofthe device may be stored in the 5-bit "number of input plugs" on the LSB side ofthe iMPR.
- the 3-bit reserved portion and the 8-bit “non-persistent extension field” and 8-bit “persistent extension field” are reserved or defined for future use.
- the 1-bit "on-line” portion on the MSB side ofthe oPCR and the iPCR may indicate the state of use ofthe plug. For example, a value of 1 may indicate an ON-LINE state ofthe plug, and a value of 0 may indicate an OFF-LINE state ofthe plug.
- the 1-bit "broadcast connection counter" ofthe oPCR and the iPCR may indicate a broadcast connection state. For example, a value of 1 may indicate a broadcast connection exists and a value of 0 may indicate a broadcast connection does not exist.
- oPCR and the iPCR may indicate the number of point-to-point connections ofthe plug.
- the 6- bit "channel number" ofthe oPCR and the iPCR may indicate the number of an isochronous channel to which the plug is connected.
- the 2-bit "data rate” portion ofthe oPCR may indicate the actual transmission rate of isochronous data packets supplied from the plug.
- overhead ID portion ofthe oPCR may have a code stored therein which indicates an overhead bandwidth for isochronous communication.
- the 10-bit "payload” portion ofthe oPCR may indicate the maximum value of data which may be contained in isochronous packets and/or which may be handled by the plug.
- the reserved portions are reserved for future or other use.
- the AV-device 27-1 may read the isochronous data supplied to designated
- the AV-device 31-1 may supply isochronous data to channel #2 which was designated by oPCR[0], and the AV-device 31-1 may read the isochronous data from designated channel #2 through iPCR[l].
- connection manager 1 may include the device name setting section 21 (Fig. 3).
- Such section may have stored therein a previously formed ID-device table which may indicate company IDs, chip LDs, and names ofthe devices
- step SI 1 a user may connect a device to the network 99 using a cable in
- processing may proceed to step S12 wherein bus resetting may be automatically performed by a bus initialization function in the physical layer of each node so as to execute a bus reconfiguration. With such reconfiguration, a node LD is reassigned to each node.
- a predetermined standard LEE 1394 serial bus
- the device function checking section 26 may determine whether the newly connected device conforms to a predetermined standard such as LEC 61883 or LEC 1883.
- processing may proceed to step S14 wherein the device name setting section 21 (Fig. 3) may successively read out the company LDs and chip LDs ofthe nodes to form a node-LD reference table ofthe company LDs, the chip LDs, and the node LDs ofthe nodes.
- a node-LD reference table of the company LDs, the chip LDs, and the node LDs ofthe nodes.
- An example of such node-LD reference table having company LDs, chip LDs, and node LDs ofthe nodes is illustrated in Fig. 14.
- the display control section 24 may read out the name ofthe newly connected device from the device name setting section 21 and may cause such name to be displayed on the monitor 3. Upon viewing such display, the user may, if necessary, revise or
- step SI 7 the user may input a command to perform an input/output connection setting operation by use ofthe remote controller 2 (Fig. 1).
- the input/output connection setting input section 22 (Fig. 3) may cause a graphic interface for an input/output connection designation to be displayed on the monitor 3.
- the user may input a desired input/output connection setting by operating the remote controller 2.
- Such connection setting may conform to a predetermined standard, such as LEC 61883.
- the input/output connection setting execution section 23 may perform processing pertaining to an input/output connection or cancellation of a predetermined one ofthe nodes based on an input/output connection setting instruction obtained in step SI 7.
- the state ofthe network 99 after execution of such processing pertaining to the input/output connection or cancellation ofthe predetermined node may be stored in the input/output connection memory section 25 (Fig. 3).
- connection manager 1 may be used to perform connections of a network.
- a desired connection setting(s) of a device(s) may be performed without operating the respective device(s).
- FIG. 15 An example of a graphic interface ofthe input/output connection designation of step S17 (Fig. 12) is illustrated in Fig. 15.
- Cells 30-1 to 30-4 arranged in the uppermost horizontal row represent the output plugs of several devices (such as a camera/recorder, a set top box, a video tape recorder, and hard disk drive).
- Cells 32-1 to 32-4 in the leftmost column represent the input plugs ofthe devices.
- the cell located at the intersection ofthe column containing one ofthe output plug cells and the row containing one ofthe input plug cells represents the state of connection between the respective output plug and the respective input plug, wherein single cross-hatching, shading or the like in a cell may indicate a connection between corresponding plugs and the absence thereof may indicate that such connection has not been established.
- cell 34 represents the state of connection between the output
- cell 34 indicates that the output plug ofthe set-top box 7 is connected to the input plug ofthe VTR 5.
- cell 35 represents the state of connection between the output plug ofthe HDD 4 and the input plug ofthe camera/recorder 6 and, in the arrangement shown in Fig. 15, cell 35 indicates that the output plug ofthe HDD 4 is connected to the input plug ofthe camera/recorder 6.
- the empty cells indicate that the respective connection is possible but has not been established.
- the double cross- hatching in a cell indicates that a connection between the corresponding plugs may not be possible. As such, in the example of Fig.
- the resulting display is a diagonal line between the left top corner and the right bottom corner of double cross-hatching which indicates that corresponding connections may not be possible.
- unit_spec_id of "unit_directory”
- "OOh” may be written as the first octet
- " AOh” may be written as the second octet
- "2Dh” may be written as the third octet.
- “Olh” may be written as the first octet and "1” may be written as the LSB ofthe third octet. From such values, it may be
- step S21 the device function checking section 26 may read "unit_spec_id" and "unit_sw_version” in "unit_directory” for a newly connected device. Processing may then proceed to step S22.
- step S22 the device function checking section 26 may determine whether the first to third octets of "unit_spec_id" are OOh, AOh, and 2Dh, respectively, and whether the first octet and the LSB ofthe third octet of "unit_sw_version" are Olh and 1, respectively.
- processing may proceed to step S23.
- step S23 the device function checking section 26 may read out the number of output plugs and the number of input plugs ofthe newly connected device. Thereafter, the processing may be terminated. Alternatively, step 23 may be omitted, whereupon if the result
- step S22 determination of step S22 is affirmative, processing may be terminated.
- step S22 If the result ofthe determination in step S22 is negative, processing may proceed to step S24.
- step S24 processing for a device which does not conform to LEC 61883 may be performed.
- connection manager 1 may perform input/output setting operations exclusively for the devices conforming to LEC 61883 and having plug control registers.
- step S31 the input/output connection setting execution section 23 demands or requests that the node operating as an isochronous manager (for example, set-top box 7) acquire an isochronous communication channel. In response to such demand, the node operating as an isochronous manager (for example, set-top box 7) acquire an isochronous communication channel. In response to such demand, the node operating as an isochronous manager (for example, set-top box 7) acquire an isochronous communication channel. In response to such demand, the node operating as an isochronous manager (for example, set-top box 7) acquire an isochronous communication channel. In response to such demand, the node operating as an isochronous manager (for example, set-top box 7) acquire an isochronous communication channel. In response to such demand, the node operating as an isochronous manager (for example, set-top box 7) acquire an isochronous communication channel. In response to such demand, the node operating as an isochronous manager (for example, set-top box 7)
- isochronous manager sets "0" for the bit ofthe channel available register(s) in the CSRs which
- step S32 the input/output connection setting execution section 23 demands that the node operating as an isochronous manager acquire a necessary isochronous communication band or time period. In response to such demand, the node operating as an isochronous manager subtracts the value ofthe demanded band from the value ofthe bandwidth available register in the CSRs. Processing may then proceed to step S33.
- step S33 the input/output connection setting execution section 23 causes the input device designated by the user in step S17 (Fig. 12) to select an unused one ofthe iPCRs
- step S34 the input/output connection setting execution section 23 causes the output device designated by the user to select an unused one ofthe oPCRs (oPCR[k]), to set in the oPCR[k] the same isochronous channel number as that set in the iPCR[j], and to set "1" in the point-to-point connection counter.
- oPCR[k] an unused one ofthe oPCRs
- oPCR[k] the same isochronous channel number as that set in the iPCR[j]
- data may be transmitted from the output plug ofthe designated output device to the input plug ofthe designated input device by using the secured channel and band.
- step S41 the input/output connection setting execution section 23 may clear
- step S42 the input/output connection setting execution section 23 clears "channel number” and "point-to-point connection counter" of iPCR[k] ofthe input device designated by the user to release or place the iPCR[k] in an unused or available state. Processing may then proceed to step S43.
- step S43 the input/output connection setting execution section 23 demands that the node operating as an isochronous resource manager set free the necessary isochronous communication band.
- step S44 the input/output connection setting execution section 23 demands that the node operating as an isochronous resource manager set free the isochronous communication channel.
- the node operating as an isochronous resource manager may set the bit corresponding to the channel available registers in the CSRs to a value of " 1 ". Thereafter, processing may be terminated.
- the device function checking section 26 (Fig. 3) may inquire or request ofthe plug of each device an outputtable signal format by the Input/Output Plug Signal Format Command in the AV/C
- connection manager 1 may cause a notice to be provided to the user which advises the user not to establish a connection between the respective iPCRs and oPCRs thereof or may prevent the user from selecting a connection therebetween by use ofthe graphic interface for input/output
- FIG. 19 illustrates an example of a graphic interface for input/output connection designation in which the user is advised that the VTR 5 and the set-top box 7 cannot be connected to each other due to a difference in signal formats or non- compliance with a predetermined standard or the like. (See double cross-hatching in cells 97
- cells for indicating that a connection may not be established due to a difference in signal formats, non-compliance with a predetermined standard and so forth may be displayed in a color different from that of the other cells.
- other arrangements may be utilized to differentiate between cells which indicate that a connection may not be establish and those which indicate that a
- connection may be establish.
- a graphic interface for input/output connection designation is illustrated in Fig. 20.
- icons and names of devices may be displayed.
- the user may input an instruction for a desired connection between devices by performing a mouse-type operation which may be similar to a connection operation of input and output plugs of analog devices.
- the user may drag a pointer from a desired signal output device (such as VTR 5) to a desired signal input device (such as camera 6) by use of a mouse device which may be included in the remote controller 2 (Fig. 1).
- VTR desired signal output device
- desired signal input device such as camera 6
- a mouse device which may be included in the remote controller 2 (Fig. 1).
- an image 96 of a cable and an icon 95 indicating a signal input/output direction may be displayed.
- An example of an arrangement of an ID-name table in the device name setting section 21 which may be used to obtain a device name from company LDs and chip IDs is
- the LD-name table may include names of manufacturers corresponding to
- the device name setting section 21 may temporarily set a device name on the basis of a name read out from the LD-name table. As an example, in the situation in which "1" is read out as a company ID for a newly connected device and "2" is read out as a chip LD for the device, the device name setting section 21 may combine the name "SONY” (corresponding to the company LD " 1 ”) and the name “VTR” (corresponding to the chip LD "2”) to obtain the name " SONY VTR"
- a number may be added after the end of each name letter sequence. For example, if no information (company LD and chip LD) is obtained from a device, the device name setting section 21 may read out the name "DEVICE" from the LD-name table and the user may add "01 " to it to obtain "DEVICE01 " as the device name. If the same information is read from different devices, the device name setting section 21 may temporarily set a name obtained by adding together a name read out from the LD-name table and a numeral sequence different from numeral sequences already used in device names.
- the device name setting section 21 may automatically set "DEVICE03" temporarily for a newly added device.
- This setting method may also be used for devices for which company LDs and chip LDs can be
- connection manager 1 may be provided with a user interface for changing
- connection manager 1 enables the user to easily and quickly perform a desired connection setting or settings between a number of information processing apparatuses connected in a network, whereupon data may be transferred therebetween.
- the remote controller 2 may be a mouse or a keyboard or any device which enables a signal formed from a user input to be supplied to the connection manager 1.
- connection manager 1 has been described as being a separate device, the present invention is not so limited. Alternatively, the functions ofthe connection manager may be included within another device (such as VTR 5).
- the results of input/output connection setting performed by the connection manager 1 with respect to the nodes ofthe network may be displayed on an input/output connection designation graphic interface.
- the input/output connection designation graphic interface may be formed so that an output plug and an input plug may be repeatedly connected to the limit of LEEE 1394 channels and bands.
- connection manager 1 may be adapted to store input/output connection conditions in a memory such as RAM 13 (Fig. 2) at predetermined time intervals or after the occurrence of a predetermined event or the like so as to enable such connection conditions to be restored after the occurrence of a bus reset which may be caused by the connection of an additional device to the bus or the like. That is, after the occurrence of a bus reset, the connection manager may automatically read the stored connection information and perform reconnection processing so as to re-establish the connection conditions which existed
- a computer program for performing the above-described processing may be provided in communication mediums such as those involving a network and a satellite as well in a recording medium such as a magnetic disk, a compact-disk read-only memory (CD-ROM) and a solid state memory. Therefore, the present invention enables an input/output setting or settings between a number of information processing apparatuses connected to a network to be
- the present invention conforms or operates in accordance with a number of predetermined standards, such as LEEE1394 and LEC61883.
- an information processing apparatus and an information processing method according to this invention respectively are applied to preferably a home
- VTR Video Tape Recorder
- HDD high-dielectric
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020007000278A KR20010021719A (en) | 1998-05-12 | 1999-05-12 | Method and apparatus for setting connections between a number of information processing apparatuses |
JP2000549010A JP2002515692A (en) | 1999-05-12 | 1999-05-12 | Method and apparatus for setting up a connection or a plurality of connections between multiple information processing devices coupled to a network |
EP99919544A EP0997022A1 (en) | 1998-05-12 | 1999-05-12 | Method and apparatus for setting connections between a number of information processing apparatuses |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12847598 | 1998-05-12 | ||
JP10/128475 | 1998-05-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999059309A1 true WO1999059309A1 (en) | 1999-11-18 |
Family
ID=14985663
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1999/002454 WO1999059309A1 (en) | 1998-05-12 | 1999-05-12 | Method and apparatus for setting connections between a number of information processing apparatuses |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0997022A1 (en) |
KR (1) | KR20010021719A (en) |
TW (1) | TW427086B (en) |
WO (1) | WO1999059309A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1113625A2 (en) * | 1999-12-28 | 2001-07-04 | Nec Corporation | Communication path control method and device for data networks using high-speed buses |
EP1117226A2 (en) * | 2000-01-17 | 2001-07-18 | Yamaha Corporation | Connection setting apparatus |
EP1507359A1 (en) * | 2003-08-13 | 2005-02-16 | Yamaha Corporation | Connection setting program, method and apparatus |
WO2012144757A2 (en) * | 2011-04-21 | 2012-10-26 | Samsung Electronics Co., Ltd. | Method and apparatus for connecting devices |
EP1962275A3 (en) * | 2000-12-25 | 2014-08-20 | Yamaha Corporation | Method and system for managing transmission and reception of data over a network |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0859322A2 (en) * | 1997-02-17 | 1998-08-19 | Sony Corporation | Determination of device sub-functions in a P1394 environment |
-
1999
- 1999-05-11 TW TW088107635A patent/TW427086B/en not_active IP Right Cessation
- 1999-05-12 WO PCT/JP1999/002454 patent/WO1999059309A1/en not_active Application Discontinuation
- 1999-05-12 KR KR1020007000278A patent/KR20010021719A/en not_active Application Discontinuation
- 1999-05-12 EP EP99919544A patent/EP0997022A1/en not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0859322A2 (en) * | 1997-02-17 | 1998-08-19 | Sony Corporation | Determination of device sub-functions in a P1394 environment |
Non-Patent Citations (1)
Title |
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WICKELGREN I J: "THE FACTS ABOUT FIREWIRE", IEEE SPECTRUM, vol. 34, no. 4, 1 April 1997 (1997-04-01), pages 19 - 25, XP002051393, ISSN: 0018-9235 * |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1113625A2 (en) * | 1999-12-28 | 2001-07-04 | Nec Corporation | Communication path control method and device for data networks using high-speed buses |
EP1113625A3 (en) * | 1999-12-28 | 2001-10-24 | Nec Corporation | Communication path control method and device for data networks using high-speed buses |
US7007078B2 (en) | 1999-12-28 | 2006-02-28 | Nec Corporation | Method and apparatus for re-securing resources after a detected bus reset |
EP1117226A2 (en) * | 2000-01-17 | 2001-07-18 | Yamaha Corporation | Connection setting apparatus |
EP1117226A3 (en) * | 2000-01-17 | 2003-06-11 | Yamaha Corporation | Connection setting apparatus |
US7009942B2 (en) | 2000-01-17 | 2006-03-07 | Yamaha Corporation | Connection setting apparatus |
EP1962275A3 (en) * | 2000-12-25 | 2014-08-20 | Yamaha Corporation | Method and system for managing transmission and reception of data over a network |
EP1507359A1 (en) * | 2003-08-13 | 2005-02-16 | Yamaha Corporation | Connection setting program, method and apparatus |
US7865601B2 (en) | 2003-08-13 | 2011-01-04 | Yamaha Corporation | Connection setting program method and apparatus |
WO2012144757A2 (en) * | 2011-04-21 | 2012-10-26 | Samsung Electronics Co., Ltd. | Method and apparatus for connecting devices |
WO2012144757A3 (en) * | 2011-04-21 | 2013-01-10 | Samsung Electronics Co., Ltd. | Method and apparatus for connecting devices |
US11190605B2 (en) | 2011-04-21 | 2021-11-30 | Samsung Electronics Co., Ltd. | Method and apparatus for connecting devices |
Also Published As
Publication number | Publication date |
---|---|
EP0997022A1 (en) | 2000-05-03 |
TW427086B (en) | 2001-03-21 |
KR20010021719A (en) | 2001-03-15 |
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