Dynamic information storage or retrieval – Information location or remote operator actuated control – Selective addressing of storage medium
Patent
1995-01-25
1998-06-16
Powell, Mark R.
Dynamic information storage or retrieval
Information location or remote operator actuated control
Selective addressing of storage medium
34082515, H04N 5765
Patent
active
057682240
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to an AV (audio/video) system composed of a plurality of AV component devices and a method of establishing a connection setting for the AV component devices.
BACKGROUND ART
AV systems are composed of a plurality of AV component devices including a TV (television) set, a VTR (video tape recorder), an LDP (laser disc player), etc. which are connected in a certain configuration.
Since such AV systems allow their component devices to be connected in all possible configurations, a ROM must have a large storage capacity for storing system configuration information, and the user finds it difficult to establish a connection setting for the component devices of the system.
In the conventional AV systems, the system configuration representing a connection setting for a plurality of AV component devices is stored as it is in a nonvolatile memory (NVRAM). Since the nonvolatile memory is expensive, the storage capacity thereof needs to be as small as possible.
DISCLOSURE OF THE INVENTION
In view of the above conventional problems, it is a first object of the present invention to provide an AV system having a nonvolatile memory of as small a storage capacity as possible for storing system configuration information.
A second object of the present invention is to provide an AV system which allows the storage capacity of a ROM for storing system configuration information in advance to be as small as possible.
A third object of the present invention is to provide a method of simply establishing a connection setting for AV component devices.
According to a first invention, an AV system comprises an AV center and a plurality of AV component devices, the AV center comprising configuration storage means for storing a predetermined system configuration of the AV component devices, and a nonvolatile memory for storing at least pointer information of the predetermined system configuration stored in the configuration storage means. This arrangement allows a given system configuration of the AV component devices to be stored well.
According to a second invention, an AV system comprises an AV center and a plurality of AV component devices, the AV center comprising configuration storage means for storing a plurality of predetermined system configurations of the AV component devices, selecting means for selecting one of the system configurations based on inputted information from a user, and a nonvolatile memory for storing at least pointer information of the system configuration selected by the selecting means. This arrangement allows certain system configurations of the AV component devices to be stored, and each one of the system configuration is marked by a pointer, reducing the storage capacity for storing the system configurations.
According to a third invention, an AV system comprises an AV center and a plurality of AV component devices, the AV center comprising configuration storage means for storing a predetermined system configuration of the AV component devices, and a nonvolatile memory for storing difference information indicative of the difference between the system configuration stored in the configuration storage means and a desired system configuration, the configuration storage means containing an upper system configuration and including a plurality of system configurations between the AV center and the AV component devices. This arrangement allows a given system configuration of the AV component devices to be stored efficiently.
According to a fourth invention, an AV system comprises an AV center and a plurality of AV component devices, the AV center comprising configuration storage means for storing a plurality of predetermined system configurations of the AV component devices, selecting means for selecting one of the system configurations based on inputted information from a user, and a nonvolatile memory for storing difference information indicative of the difference between the system configuration stored in the configuration storage means and a given system con
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Katsuyama Akira
Kotabe Noriko
Kusagaya Yasuo
Osakabe Yoshio
Sato Makoto
Maioli Jay H.
Powell Mark R.
Sony Corporation
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