Communication system and communication control apparatus and method

• US 7,073,000 B2
• Filed: 06/28/2002
• Issued: 07/04/2006
• Est. Priority Date: 10/31/2000
• Status: Expired due to Fees

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Isoda, Takashi
• Primary Examiner(s): AUVE, GLENN ALLEN
• Application Number:
  US10/185,701
• Publication Number:
  US 20030041195A1
• Time in Patent Office: 1,467 Days
• Field of Search: 710/33, 710/20, 710/104, 710/10, 710/15, 710/105
• US Class Current: 710/104
• CPC Class Codes: G06F 11/1625 in communications, e.g. transmission, interfaces
• CPC Class Codes: G06F 11/2005 using redundant communication controllers
• CPC Class Codes: G06F 11/2007 using redundant communication media
• CPC Class Codes: G06F 21/6218 to a system of files or objects, e.g. local or distributed file system or database
• CPC Class Codes: G06F 21/6245 Protecting personal data, e.g. for financial or medical purposes
• CPC Class Codes: G06F 2221/2101 Auditing as a secondary aspect
• CPC Class Codes: G06F 2221/2141 Access rights, e.g. capability lists, access control lists, access tables, access matrices
• CPC Class Codes: G06F 2221/2149 Restricted operating environment
• CPC Class Codes: G06Q 20/10 specially adapted for electronic funds transfer [EFT] systems; specially adapted for home banking systems
• CPC Class Codes: G06Q 20/1235 with control of digital rights management [DRM]
• CPC Class Codes: G06Q 20/385 using an alias or single-use codes
• CPC Class Codes: G06Q 20/425 using two different networks, one for transaction and one for security confirmation
• CPC Class Codes: G06Q 30/0277 Online advertisement
• CPC Class Codes: G06Q 30/0609 Buyer or seller confidence or verification
• CPC Class Codes: G06Q 50/188 Electronic negotiation
• CPC Class Codes: G07F 17/16 for devices exhibiting advertisements, announcements, pictures or the like
• CPC Class Codes: H04B 1/0483 Transmitters with multiple parallel paths
• CPC Class Codes: H04B 1/40 Circuits
• CPC Class Codes: H04B 7/0604 with predefined switching scheme
• CPC Class Codes: H04B 7/084 Equal gain combining, only phase adjustments antenna beam scanning or forming by phase or amplitude control H01Q3/26, e.g. phased arrays
• CPC Class Codes: H04B 7/0894 : using different delays between antennas
• CPC Class Codes: H04B 7/15507 : Relay station based processing for cell extension or control of coverage area, network planning with network coordinated processing with regard to cell extension H04W16/26; network topologies using dedicated repeater stations H04W84/047; terminal devices adapted for relaying to or from an other terminal H04W88/04
• CPC Class Codes: H04B 7/15535 : Control of relay amplifier gain amplifier gain control in general H03G3/00; gain control reducing self - or loop interference H04B7/15578
• CPC Class Codes: H04J 13/12 : Generation of orthogonal codes
• CPC Class Codes: H04L 1/0041 : Arrangements at the transmitter end
• CPC Class Codes: H04L 1/0045 : Arrangements at the receiver end
• CPC Class Codes: H04L 1/0066 : Parallel concatenated codes
• CPC Class Codes: H04L 1/0069 : Puncturing patterns
• CPC Class Codes: H04L 1/0071 : Use of interleaving interleaving per se H03M13/27
• CPC Class Codes: H04L 1/06 : using space diversity
• CPC Class Codes: H04L 1/08 : by repeating transmission, e.g. Verdan system H04L1/1858 and H04L1/189 take precedence
• CPC Class Codes: H04L 1/1819 : with retransmission of additional or different redundancy
• CPC Class Codes: H04L 1/1841 : Resequencing
• CPC Class Codes: H04L 1/1845 : Combining techniques, e.g. code combining
• CPC Class Codes: H04L 1/1848 : Time-out mechanisms
• CPC Class Codes: H04L 12/12 : Arrangements for remote connection or disconnection of substations or of equipment thereof
• CPC Class Codes: H04L 12/2803 : Home automation networks
• CPC Class Codes: H04L 12/2809 : indicating that an appliance service is present in a home automation network monitoring functionality H04L43/0817; discovery or management thereof, e.g. service location protocol [SLP] or web services, H04L67/51
• CPC Class Codes: H04L 12/2856 : Access arrangements, e.g. Internet access asynchronous transfer mode networks H04L12/5601; broadband local area networks H04L12/2801; optical access or distribution networks H04Q11/0067; access to open networks H04L12/5691; digital subscriber line end-user equipment and bit-level processing of data on a PSTN-based network H04M11/00; home network gateways H04L12/2834; wireless access networks H04W
• CPC Class Codes: H04L 12/2874 : Processing of data for distribution to the subscribers
• CPC Class Codes: H04L 12/40078 : Bus configuration home automation networks H04L12/2803; arrangements for maintenance or administration H04L41/00
• CPC Class Codes: H04L 12/40195 : by using a plurality of nodes
• CPC Class Codes: H04L 12/44 : Star or tree networks
• CPC Class Codes: H04L 12/56 : Packet switching systems
• CPC Class Codes: H04L 12/6418 : Hybrid transport
• CPC Class Codes: H04L 2001/0096 : Channel splitting in point-to-point links
• CPC Class Codes: H04L 2012/40241 : Flexray
• CPC Class Codes: H04L 2012/40273 : the transportation system being a vehicle
• CPC Class Codes: H04L 2012/6462 : Movable boundaries in packets or frames
• CPC Class Codes: H04L 2209/127 : Trusted platform modules [TPM]
• CPC Class Codes: H04L 41/12 : Discovery or management of network topologies
• CPC Class Codes: H04L 47/10 : Flow control; Congestion control
• CPC Class Codes: H04L 47/22 : Traffic shaping
• CPC Class Codes: H04L 47/2441 : relying on flow classification, e.g. using integrated services [IntServ]
• CPC Class Codes: H04L 47/28 : in relation to timing considerations
• CPC Class Codes: H04L 47/34 : ensuring sequence integrity, e.g. using sequence numbers
• CPC Class Codes: H04L 47/50 : Queue scheduling
• CPC Class Codes: H04L 47/621 : Individual queue per connection or flow, e.g. per VC
• CPC Class Codes: H04L 5/0023 : Time-frequency-space
• CPC Class Codes: H04L 5/0042 : intra-user or intra-terminal allocation
• CPC Class Codes: H04L 5/0044 : allocation of payload
• CPC Class Codes: H04L 5/0083 : symbol-by-symbol
• CPC Class Codes: H04L 61/4541 : Directories for service discovery
• CPC Class Codes: H04L 63/0428 : wherein the data content is protected, e.g. by encrypting or encapsulating the payload
• CPC Class Codes: H04L 63/065 : for group communications cryptographic mechanisms or cryptographic arrangements for key management involving conference or group key H04L9/0833
• CPC Class Codes: H04L 63/08 : for authentication of entities cryptographic mechanisms or cryptographic arrangements for entity authentication H04L9/32
• CPC Class Codes: H04L 63/0807 : using tickets, e.g. Kerberos cryptographic mechanisms or cryptographic arrangements for entity authentication using tickets or tokens H04L9/3213
• CPC Class Codes: H04L 63/102 : Entity profiles
• CPC Class Codes: H04L 63/1441 : Countermeasures against malicious traffic countermeasures against attacks on cryptographic mechanisms H04L9/002
• CPC Class Codes: H04L 65/103 : in the network
• CPC Class Codes: H04L 65/104 : in the network
• CPC Class Codes: H04L 65/1101 : Session protocols
• CPC Class Codes: H04L 65/80 : Responding to QoS
• CPC Class Codes: H04L 67/12 : specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
• CPC Class Codes: H04L 67/14 : Session management for real-time applications in data packet communications networks H04L65/1066
• CPC Class Codes: H04L 67/306 : User profiles
• CPC Class Codes: H04L 67/51 : Discovery or management thereof, e.g. service location protocol [SLP] or web services
• CPC Class Codes: H04L 69/16 : Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
• CPC Class Codes: H04L 69/168 : specially adapted for link layer protocols, e.g. asynchronous transfer mode [ATM], synchronous optical network [SONET] or point-to-point protocol [PPP]
• CPC Class Codes: H04L 69/324 : in the data link layer [OSI layer 2], e.g. HDLC
• CPC Class Codes: H04L 69/326 : in the transport layer [OSI layer 4] H04L69/16 takes precedence
• CPC Class Codes: H04L 69/329 : in the application layer [OSI layer 7]
• CPC Class Codes: H04L 9/32 : including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
• CPC Class Codes: H04M 1/2535 : adapted for voice communication over an Internet Protocol [IP] network Voice over Internet Protocol (VoIP) network equipment and services H04M7/006; implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP] H04L69/16
• CPC Class Codes: H04M 3/22 : Arrangements for supervision, monitoring or testing
• CPC Class Codes: H04M 3/42 : Systems providing special services or facilities to subscribers specially adapted for wireless communication networks H04W4/00
• CPC Class Codes: H04M 3/42102 : Making use of the called party identifier
• CPC Class Codes: H04M 7/0057 : Services where the data services network provides a telephone service in addition or as an alternative, e.g. for backup purposes, to the telephone service provided by the telephone services network
• CPC Class Codes: H04M 7/0069 : comprising a residential gateway, e.g. those which provide an adapter for POTS or ISDN terminals
• CPC Class Codes: H04N 21/6125 : involving transmission via Internet transmission by internet of broadcast information H04H60/82
• CPC Class Codes: H04N 21/64738 : Monitoring network characteristics, e.g. bandwidth, congestion level data switched network analysis H04L41/14; monitoring functioning in data switched networks H04L43/0817; flow control in packet networks H04L47/10
• CPC Class Codes: H04N 21/64784 : Data processing by the network data processing in packet switching systems H04L12/56; flow control in packet networks H04L47/10; intermediate storage or scheduling H04L49/90; provisioning of proxy services in data packet switching networks H04L67/56
• CPC Class Codes: H04N 7/148 : Interfacing a video terminal to a particular transmission medium, e.g. ISDN
• CPC Class Codes: H04W 24/00 : Supervisory, monitoring or testing arrangements
• CPC Class Codes: H04W 28/14 : using intermediate storage
• CPC Class Codes: H04W 48/16 : Discovering, processing access restriction or access information
• CPC Class Codes: H04W 52/143 : Downlink power control
• CPC Class Codes: H04W 52/225 : Calculation of statistics, e.g. average, variance
• CPC Class Codes: H04W 52/24 : using SIR [Signal to Interference Ratio] or other wireless path parameters
• CPC Class Codes: H04W 52/241 : taking into account channel quality metrics, e.g. SIR, SNR, CIR, Eb/lo
• CPC Class Codes: H04W 52/242 : taking into account path loss
• CPC Class Codes: H04W 52/245 : taking into account received signal strength
• CPC Class Codes: H04W 52/46 : in multi hop networks, e.g. wireless relay networks
• CPC Class Codes: H04W 52/48 : during retransmission after error or non-acknowledgment
• CPC Class Codes: H04W 72/54 : based on quality criteria
• CPC Class Codes: H04W 74/02 : Hybrid access
• CPC Class Codes: H04W 76/10 : Connection setup
• CPC Class Codes: H04W 8/005 : Discovery of network devices, e.g. terminals
• CPC Class Codes: H04W 8/04 : Registration at HLR or HSS [Home Subscriber Server]
• CPC Class Codes: H04W 84/12 : WLAN [Wireless Local Area Networks]
• CPC Class Codes: H04W 88/16 : Gateway arrangements
• CPC Class Codes: Y10S 707/99933 : Query processing, i.e. searching
• CPC Class Codes: Y10S 707/99936 : Pattern matching access
• CPC Class Codes: Y10S 707/99939 : Privileged access

Abstract

An initiator has logical devices (A, B, C). A target to obtain services from the initiator designates the ID of provided services and the directory ID indicating a directory where the information concerning a logical device is stored, and further the target issues a connection control request to the initiator. The initiator provides the designated logical device and services to the target via the established connection.

Claims

1. A communication system having a plurality of electronic devices, comprising:

an initiator device functioning as an initiator defined by IEEE 1394.3, wherein the initiator device comprises;

a first unit directory having a version value defined by IEEE 1394.3 and a remaining value defined by IEEE 1394.3; and

a second unit directory having a version value different from a value defined by IEEE 1394.3 and a remaining value defined by IEEE 1394.3; and

a target device which functions as a target defined by IEEE 1394.3, wherein the target device comprises;

a reader that reads at least one of the first unit directory and the second unit directory of the initiator device in order to recognize a service provided by the initiator device; and

an analyzer that, when said reader reads any of the first unit directory and the second unit directory, analyzes the remaining value in accordance with an IEEE 1394.3 definition.

2. The communication system according to claim 1, wherein the target device further determines whether a version value of the read unit directory is 0 or 1.

3. The communication system according to claim 2, wherein the target device determines whether the read unit directory contains an entry of a directory ID, and when the unit directory contains the entry of the directory ID, extracts a value of the directory ID.

4. The communication system according to claim 3, wherein, when the read unit directory contains the entry of the directory ID the target device adds a value of the directory ID as a connection parameter defined by IEEE 1394.3.

5. The communication system according to claim 3, wherein, when the read unit directory does not contain the entry of the directory ID the target device adds an address of the read unit directory as a connection parameter defined by IEEE 1394.3.

6. The communication system according to claim 3, wherein, the initiator device has a function of determining presence/absence of an added parameter upon reception of a connection parameter defined by IEEE 1394.3 from the target device.

7. The communication system according to claim 6, wherein, when the added parameter exists, the initiator device confirms whether a unit directory designated by the parameter exists, and when the unit directory exists, the initiator device confirms whether a content of the unit directory complies with IEEE 1394.3 except the version of the unit directory.

8. The communication system according to claim 7, wherein, the initiator device sends back a connection rejection to the target device when a unit directory designated by the parameter does not exist or the content of the unit directory does not comply with IEEE 1394.3.

9. The communication system according to claim 7, wherein, the initiator device further comprises a function of, when a unit directory designated by the parameter exists, and the content of the unit directory complies with a unit directory defined by IEEE 1394.3 except the version of the unit directory, determining whether a service ID designated by the parameter is supported by the unit directory designated by the parameter.

10. The communication system according to claim 9, wherein, the initiator sends back connection rejection to the target device when a unit directory designated by the parameter exists, the content of the unit directory complies with IEEE 1394.3 except the version of the unit directory, and a service ID designated by the parameter is not supported by the unit directory designated by the parameter.

11. The communication system according to claim 9, wherein, the initiator sends back a connection permission to the target device when a unit directory designated by the parameter exists, the content of the unit directory complies with IEEE 1394.3 except the version of the unit directory, and the service ID designated by the parameter is supported by the unit directory designated by the parameter.