EP0724373A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
An automatic telecommunication operator switching control system and method
Assignee: Oi Electric Co Ltd
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Filing: 1995-11-02
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Granted: —
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Expires: 2015-11-02
Abstract
Abstract A method for the automatic switching of common operators is provided in which the user at a receiving station can be immediately notified of a switch of common operators providing information transmission services, and of the identity of the new operator. Even if the receiving terminal receives flagged band area information (BAI) to trigger frequency scanning, when invalidate border area information data has been set, no frequency scanning occurs, and thus automatic switching does not take place. When radio signals from the common operator providing information transmission services can no longer be received, frequency scanning automatically starts, and automatic switching to a operator with whom transmission is possible take place. This is accompanied by sound, LCD display, blinking lamps, etc., in order to immediately alert the user to the fact that automatic switching has been performed.
Inventors
- 👤 Junichi c/o OI Electric Co Ltd Ishigaki
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 07:43
CPC Classifications
H; H04; H04W; H04W36/00; H04W36/14; H04W88/00; H04W88/02
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
89 words
A system for controlling automatic switching of telecommunication operators, each of said telecommunication operators having at least one transmitting station and providing information transmission services to a plurality of mobile receiving stations, each of said receiving stations being capable of scanning an entire frequency band of receivable radio waves when receiving border area information, and of automatically switching from the current telecommunication operator to another telecommunication operator, wherein said mobile receiving station has indication means for indicating to the user the fact that the telecommunication operator has been switched.
Claim 2
Independent Claim
89 words
A system for controlling automatic switching of telecommunication operators, each of said telecommunication operators having at least one transmitting station and providing information transmission services to a plurality of mobile receiving stations, each of said receiving stations being capable of scanning an entire frequency band of receivable radio waves when receiving border area information, and of automatically switching from the current telecommunication operator to another telecommunication operator, wherein said mobile receiving station has indication means for indicating to the user the fact that the telecommunication operator has been switched.
Claim 3
Dependent Claim
17 words
The System according to claim 1, wherein said indication means indicates to the user by outputting sound.
Claim 4
Dependent Claim
18 words
The system according to claim 1, wherein said indication means indicates to the user by a visual display.
Claim 5
Independent Claim
97 words
A system for controlling automatic switching of telecommunication operators, each of said telecommunication operators having at least one transmitting station and providing information transmission services to a plurality of mobile receiving stations, each of said receiving stations being capable of scanning an entire frequency band of receivable radio waves when receiving border area information, and of automatically switching from the current telecommunication operator to another telecommunication operator, wherein said mobile receiving station has indication means for indicating to the user the fact that the telecommunication operator has been switched and the identity of the new telecommunication operator.
Claim 6
Independent Claim
97 words
A system for controlling automatic switching of telecommunication operators, each of said telecommunication operators having at least one transmitting station and providing information transmission services to a plurality of mobile receiving stations, each of said receiving stations being capable of scanning an entire frequency band of receivable radio waves when receiving border area information, and of automatically switching from the current telecommunication operator to another telecommunication operator, wherein said mobile receiving station has indication means for indicating to the user the fact that the telecommunication operator has been switched and the identity of the new telecommunication operator.
Claim 7
Dependent Claim
23 words
A system for automatic switching control the system according to claim 4, wherein said indication means indicates to the user by outputting sound.
Claim 8
Dependent Claim
26 words
A system for automatic common operator switching control the system according to claim 4, wherein said indication means indicates to the user by a visual display.
Claim 9
Independent Claim
137 words
A method for controlling automatic switching of telecommunication operators, each of said telecommunication operators having at least one transmitting station and providing information transmission services to a plurality of mobile receiving stations, each of said receiving stations being capable of scanning an entire frequency band of receivable radio waves when receiving border area information, and of automatically switching from the current telecommunication operator to another telecommunication operator, said method comprising the steps of: (a) receiving radio waves from a telecommunication operator; (b) checking validity of border area information when receiving such border area information; (c) switching the telecommunication operator to another telecommunication operator when receiving radio waves from that other telecommunication operator, on the condition that the border area information is valid; and (d) indicating to the user the fact that the telecommunication operator has been switched.
Claim 10
Independent Claim
137 words
A method for controlling automatic switching of telecommunication operators, each of said telecommunication operators having at least one transmitting station and providing information transmission services to a plurality of mobile receiving stations, each of said receiving stations being capable of scanning an entire frequency band of receivable radio waves when receiving border area information, and of automatically switching from the current telecommunication operator to another telecommunication operator, said method comprising the steps of: (a) receiving radio waves from a telecommunication operator; (b) checking validity of border area information when receiving such border area information; (c) switching the telecommunication operator to another telecommunication operator when receiving radio waves from that other telecommunication operator, on the condition that the border area information is valid; and (d) indicating to the user the fact that the telecommunication operator has been switched.
Claim 11
Independent Claim
95 words
A System for controlling automatic switching of telecommunication operators, each of said telecommunication operators having at least one transmitting station and providing information transmission services to a plurality of mobile receiving stations, each of said receiving stations being capable of scanning an entire frequency band of receivable radio waves when receiving border area information or when being located in a predetermined area, and of automatically switching from the current telecommunication operator to another telecommunication operator, wherein said receiving station inhibits the switching of the telecommunication operator during receiving and recording invalidate border area information data.
Claim 12
Independent Claim
95 words
A System for controlling automatic switching of telecommunication operators, each of said telecommunication operators having at least one transmitting station and providing information transmission services to a plurality of mobile receiving stations, each of said receiving stations being capable of scanning an entire frequency band of receivable radio waves when receiving border area information or when being located in a predetermined area, and of automatically switching from the current telecommunication operator to another telecommunication operator, wherein said receiving station inhibits the switching of the telecommunication operator during receiving and recording invalidate border area information data.
Claim 13
Dependent Claim
41 words
A system for automatic common operator switching control the system according to claim 8, further comprising: a means for detecting band area information invalidate data in received wave signals; and a means for controlling operator switching according to said invalidate data.
Claim 14
Dependent Claim
33 words
A system for automatic common operator switching control the system according to claim 9 wherein said receiving terminal has indication means to indicate to the users when an automatic operator switch has occurred.
Claim 15
Independent Claim
91 words
A system for controlling automatic switching of telecommunation operators, each of said communication operators having at least one transmitting station and providing information transmission services to a plurality of mobile receiving stations, each of said receiving stations being capable of scanning an entire frequency band of receivable radio waves when receiving border area information or when being located in a predetermined area, and of automatically switching from the current telecommunication operator to another telecommunication operator, wherein said transmitting station transmits invalidate border area information data, as well as border area information.
Claim 16
Independent Claim
91 words
A system for controlling automatic switching of telecommunation operators, each of said communication operators having at least one transmitting station and providing information transmission services to a plurality of mobile receiving stations, each of said receiving stations being capable of scanning an entire frequency band of receivable radio waves when receiving border area information or when being located in a predetermined area, and of automatically switching from the current telecommunication operator to another telecommunication operator, wherein said transmitting station transmits invalidate border area information data, as well as border area information.
Claim 17
Dependent Claim
120 words
Method for controlling automatic switching of telecommunication operators, each of said telecommunication operators having at least one transmitting station and providing information transmission service to a plurality of mobile receiving stations, each of said receiving stations being capable of scanning an entire frequency band of receivable radio waves when receiving such border area information or when being located in a predetermined area, and of automatically switching from the current telecommunication operator to another telecommunication operator, said method comprising the steps of: (a) receiving radio waves from a telecommunication operator at a receiving station; and (b) inhibiting the switching of telecommunication operators when receiving invalidate border area information data, regardless of whether or not radio waves are received from telecommunication operators.
Claim 18
Dependent Claim
120 words
Method for controlling automatic switching of telecommunication operators, each of said telecommunication operators having at least one transmitting station and providing information transmission service to a plurality of mobile receiving stations, each of said receiving stations being capable of scanning an entire frequency band of receivable radio waves when receiving such border area information or when being located in a predetermined area, and of automatically switching from the current telecommunication operator to another telecommunication operator, said method comprising the steps of: (a) receiving radio waves from a telecommunication operator at a receiving station; and (b) inhibiting the switching of telecommunication operators when receiving invalidate border area information data, regardless of whether or not radio waves are received from telecommunication operators.
References Cited (Backward Citations)
No citation records indexed.
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