# US 7,412,717 B2 · Access control apparatus, access control method, and access control program

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- Number: US 7,412,717 B2
- Document ID: US7412717B2
- Status: Granted
- Kind: B2
- Application number: 11/038,077
- Filed: 2005-01-21
- Published: 2005-07-28
- Granted: 2008-08-12
- Earliest claimed: 2004-01-23
- Assignees: Canon Kabushiki Kaisha
- Inventors: Tetsu Fukuda; Tomoyuki Ohno
- Web page: https://patentgrep.com/patent/US7412717B2

## CPC

- H04N 21/84: Generation or processing of descriptive data, e.g. content descriptors {(systems specially adapted for using meta-information in broadcast systems H04H60/73)}
- G06F 21/36: by graphic or iconic representation
- H04N 1/00204: {with a digital computer or a digital computer system, e.g. an internet server (programmed control between transmitter and receiver or between image input and image output device H04N1/32561)}
- H04N 1/00244: {with a server, e.g. an internet server (fax-servers or the like for store and forward H04N1/324)}
- H04N 1/00291: {with receiver circuitry (television receiver circuitry per se H04N5/44)}
- H04N 1/00427: {using a menu list (H04N1/00421, H04N1/00424, H04N1/00429 take precedence)}
- H04N 1/00442: {Simultaneous viewing of a plurality of images, e.g. using a mosaic display arrangement of thumbnails}
- H04N 1/00453: {arranged in a two dimensional array}
- H04N 1/00461: {marking or otherwise tagging one or more displayed image, e.g. for selective reproduction}
- H04N 1/2158: {using a detachable storage unit}
- H04N 1/32128: {attached to the image data, e.g. file header, transmitted message header, information on the same page or in the same computer file as the image (for information embedded in the image H04N1/32144)}
- H04N 1/4406: {Restricting access, e.g. according to user identity (mechanisms actuated y cards, PIN or the like in apparatus for dispensing G07F7/08)}
- H04N 1/4426: {involving separate means, e.g. a server, a magnetic card}
- H04N 1/444: {to a particular document or image or part thereof}
- H04N 21/25875: {involving end-user authentication (restricting access to computer systems by authenticating users using a predetermined code G06F21/33; arrangements for secret or secure communication including means for verifying the identity or authority of a user of the system H04L9/32; networks authentication protocols H04L63/08; authentication in wireless network security H04W12/06)}
- H04N 21/2743: Video hosting of uploaded data from client
- H04N 21/4221: {Dedicated function buttons, e.g. for the control of an EPG, subtitles, aspect ratio, picture-in-picture or teletext}
- H04N 21/478: Supplemental services, e.g. displaying phone caller identification, shopping application
- H04N 21/6125: {involving transmission via Internet (transmission by internet of broadcast information H04H60/82)}
- H04N 21/6175: {involving transmission via Internet (broadcast-related systems characterised by the transmission system being the Internet H04H60/82)}
- H04N 21/6582: {Data stored in the client, e.g. viewing habits, hardware capabilities, credit card number (arrangements where receivers interact with the broadcast H04H20/38)}
- H04N 21/8153: {comprising still images, e.g. texture, background image}
- H04N 2201/0087: Image storage device
- H04N 2201/3214: of a date
- H04N 2201/3215: of a time or duration
- H04N 2201/3253: Position information, e.g. geographical position at time of capture, GPS data
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)

## Abstract

Additional information indicating photographic conditions for a received image signal is compared with additional information indicating photographic conditions for an access target image signal. If the both conditions satisfy a predetermined relationship, an access to the access target image signal is permitted.

## Claims

### Claim 1

An access control method for controlling an access to an image signal through a network, the method comprising steps of:
receiving additional information indicating photographic conditions for the image signal through the network;
comparing the additional information indicating the photographic conditions for said received image signal with additional information indicating photographic conditions for an access target image signal, and determining whether the photographic conditions for said received image signal and the photographic conditions for said access target image signal satisfy a predetermined relationship;
granting the access to said access target image signal if a comparison result shows that the photographic conditions for said received image signal and the photographic conditions for said access target image signal satisfy the predetermined relationship;
receiving the access target image signal and the additional information indicating the photographic conditions for the access target image signal;
receiving a selection as to whether to restrict the access to said access target image signal;
storing said access target image signal, said additional information on the access target image signal, and information as to whether the access to the image signal is restricted while relating the access target image signal, the additional information, and the information as to whether the access to the image signal is restricted to one another;
receiving a request of the access to a stored image signal;
determining whether the access to the access-requested image signal is restricted; and
requesting transmission of an image signal including the additional information through said network to an access requester if the access to the access-requested image signal is restricted, and granting the access to the access-requested image signal if the access is not restricted.

### Claim 2

A computer-readable storage medium on which is stored an access control program for causing a control section included in an access control apparatus that controls an access to an image signal through a network, to execute steps of:
receiving additional information indicating photographic conditions for the image signal through the network;
comparing the additional information indicating the photographic conditions for said received image signal with additional information indicating photographic conditions for an access target image signal, and determining whether the photographic conditions for said received image signal and the photographic conditions for said access target image signal satisfy a predetermined relationship;
granting the access to said access target image signal if a comparison result shows that the photographic conditions for said received image signal and the photographic conditions for said access target image signal satisfy the predetermined relationship;
receiving the access target image signal and the additional information indicating the photographic conditions for the access target image signal;
receiving a selection as to whether to restrict the access to said access target image signal;
storing said access target image signal, said additional information on the access target image signal, and information as to whether the access to the image signal is restricted while relating the access target image signal, the additional information, and the information as to whether the access to the image signal is restricted to one another;
receiving a request of the access to a stored image signal;
determining whether the access to the access-requested image signal is restricted; and
requesting transmission of an image signal including the additional information through said network to an access requester if the access to the access-requested image signal is restricted, and granting the access to the access-requested image signal if the access is not restricted.