Anti-vehicle-thief apparatus and code setting method of the apparatus
First Claim
1. An anti-vehicle-thief apparatus comprising:
- a plurality of keys having specific codes, andengine controlling means,wherein said engine controlling means performs initial settings of said specific codes by includingstorage means having an area for storing said codes specific to each of said plurality of keys, andcontrolling means for controlling so as to store inputted codes specific to each of said plurality of keys in said area of said storage means when data having been stored in said area satisfies predetermined conditions,wherein electricity is supplied from a power supply to said engine controlling means when an ignition switch is on and said controlling means comprises judging means for judging whether of not voltage of the power supply for said engine controlling means is stable, and stores said codes specific to each of said plurality of keys in said area only when the voltage is stable.
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Accused Products
Abstract
An anti-vehicle-thief apparatus registers specific ID codes of a plurality of keys, and determines validity of a key, for example, in accordance with an operation of the key 1 including a transponder having one of the registered specific ID codes. The anti-vehicle-thief apparatus registers a code specific to the key and confirms an operation in which an ignition switch is turned on and off five times by using the key, where this operation is for changing the ID codes specific to the plurality of keys registered in EEPROMs. After the confirmation of the operation, ID codes specific to a plurality of new keys are successively registered, thereby preventing a third person from using the old keys, as well as making registration of the ID codes specific to the new keys easily.
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Citations
38 Claims
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1. An anti-vehicle-thief apparatus comprising:
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a plurality of keys having specific codes, and engine controlling means, wherein said engine controlling means performs initial settings of said specific codes by including storage means having an area for storing said codes specific to each of said plurality of keys, and controlling means for controlling so as to store inputted codes specific to each of said plurality of keys in said area of said storage means when data having been stored in said area satisfies predetermined conditions, wherein electricity is supplied from a power supply to said engine controlling means when an ignition switch is on and said controlling means comprises judging means for judging whether of not voltage of the power supply for said engine controlling means is stable, and stores said codes specific to each of said plurality of keys in said area only when the voltage is stable.
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2. An anti-vehicle-thief apparatus comprising:
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(a) first code storage means for storing a specific first code; (b) a first key having a specific second code; (c) a second key having a specific third code which is different from said specific first and second codes; (d) first detection means for detecting whether or not an operation switch is turned on by using said first key; (e) code reading means for reading said specific second code from said first key when the operation switch is turned on by using said first key; (f) first code comparison means for comparing said specific first code stored in said first code storage means with said specific second code read by said code reading means; (g) determination means for determining whether said first key is valid where said specific second code is identical to said specific first, or invalid where said specific second code is not identical to said specific first code; (h) second detection means for detecting whether or not the operation switch is turned on and off predetermined times by using said first key which is valid; (i) code registration means for registering said specific third code additionally with said first code storage means when the operation switch is turned on by using said second key after detecting that the operation switch is turned on and off the predetermined times by using said first key; (j) engine revolution detection means for detecting engine revolution; (k) voltage detection means for detecting voltage of power supply; and (l) means for prohibiting code registration by said code registration means when the engine revolution and the voltage is lower than a predetermined value.
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3. A code setting method of an anti-vehicle-thief apparatus including first code storage means for storing a specific first code;
- a first key having a specific second code;
a second key having a specific third code which is different from said specific first and second codes;
first detection means for detecting whether or not an operation switch is turned on by using said first key;
code reading means for reading said specific second code from said first key when the operation switch is turned on by using said first key;
first code comparison means for comparing said specific first code stored in said first code storage means with said specific second code read by said code reading means; and
determination means for determining whether said first key is valid where said specific second code is identical to said specific first code, or invalid where said specific second code is not identical to said specific first code, the method comprising;(a) a first detection step of detecting whether or not the operation switch is turned on by using said first key; (b) a comparison step of comparing said specific first code stored in said first code storage means with said specific second code read by said code reading means; (c) a second detection step of detecting whether or not the operation switch is turned on and off predetermined times by using said first key; (d) a third detection step of detecting whether or not the operation switch is turned on by using said second key; (e) a registration step of registering said specific third code additionally with said first code storage means when the operation switch is turned on by using said second key after detecting that the operation switch is turned on and off the predetermined times by using said first key; (f) an engine revolution detection step of detecting engine revolution; (g) a voltage detection step of detecting voltage of a power supply; and (h) a code registration prohibition step of prohibiting code registration when the engine revolution and the voltage is lower than a predetermined value.
- a first key having a specific second code;
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4. An anti-vehicle-thief apparatus, comprising:
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(a) first code storage means for storing a plurality of codes including a specific first code; (b) a first key having a specific second code; (c) a second key having a specific third code which is different from said specific first code and said specific second code; (d) first detection means for detecting whether or not an operation switch is turned on by using said first key; (e) code reading means for reading said specific second code from said first key when the operation switch is turned on by using said first key; (f) first code comparison means for comparing said specific first code stored in said first code storage means with said specific second code read by said code reading means; (g) first determination means for determining whether said first key is valid where said specific second code is identical to said specific first code, or invalid where said specific second code is not identical to said specific first code; (h) second detection means for detecting whether or not the operation switch is turned on and off a predetermined plurality of times by using said first key which is valid; and (i) first code registration means for registering said specific third code additionally with said first code storage means when the operation switch is turned on by using said second key after detecting that the operation switch is turned on and off the predetermined plurality of times by using said first key which is valid, wherein said first code storage means clears the other codes which have been already registered, except for said specific first code which is identical to said specific second code, when said first detection means detects that the operation switch is turned on and off the predetermined plurality of times by using said first key which is valid.
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5. A code setting method of anti-vehicle-thief apparatus including first code storage means for storing a plurality of codes including a specific first code;
- a first key having a specific second code;
a second key having a specific third code which is different from said specific first code and said specific second code;
first detection means for detecting whether or not an operation switch is turned on by using said first key;
code reading means for reading said specific second code from said first key when the operation switch is turned on by using said first key;
first code comparison means for comparing said specific first code stored in said first code storage means with said specific second code read by said code reading means; and
first determination means for determining whether said first key is valid where said specific second code is identical to said specific first code, or invalid where said specific second code is not identical to said specific first code;
comprising;(a) a first detection step of detecting whether or not the operation switch is turned on by using said first key; (b) a comparison step of comparing said specific first code stored in said first code storage means with said specific second code read by said code reading means; (c) a second detection step of detecting whether or not the operation switch is turned on and off a predetermined plurality of times by using said first key; (d) a third detection step of detecting whether or not the operation switch is turned on by using said second key; (e) a registration step of registering said specific third code additionally with said first code storage means when the operation switch is turned on by using said second key after detecting that the operation switch is turned on and off the predetermined plurality of times by using said first key which is valid; and (f) a code clearing step of clearing the other codes which have been already registered, except for said specific first code which is identical to said specific second code, when said first detection means detects that the operation switch is turned on and off the predetermined plurality of times by using said first key which is valid.
- a first key having a specific second code;
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6. An anti-vehicle-thief apparatus comprising:
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a plurality of keys having specific codes; and determination means for determining validity of keys, wherein said determination means performs initial settings of said specific codes by including; storage means having an area for storing said codes specific to each of said plurality of keys, and controlling means for controlling so as to store inputted codes specific to each of said plurality of keys in said area of said storage means when said area of said determination means is in an initialized state, wherein electricity is supplied to said determination means directly from a power supply and said controlling means comprises judging means for judging whether or not voltage of the power supply for said determination means is stable, and stores said codes specific to each of said plurality of keys in said area only during a period when the voltage is stable. - View Dependent Claims (7)
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8. A code setting method of anti-vehicle-thief apparatus including first code storage means for storing a specific first code;
- a first key having a specific second code;
a second key having a specific third code which is different from said specific first and second codes;
first detection means for detecting whether or not an operation switch is turned on by using said first key;
code reading means for reading said specific second code from said first key when the operation switch is turned on by using said first key;
first code comparison means for comparing said specific first code stored in said first code storage means with said specific second code read by said code reading means; and
first determination means for determining whether said first key is valid where said specific second code is identical to said specific first, or invalid where said specific second code is not identical to said specific first code;
comprising;(a) a first detection step of detecting whether or not the operation switch is turned on by using said first key; (b) a comparison step of comparing said specific first code stored in said first code storage means with said specific second code read by said code reading means; (c) a second detection step of detecting whether or not the operation switch is turned on and off a predetermined plurality of times by using said first key; (d) a third detection step of detecting whether or not the operation switch is turned on by using said second key; (e) a registration step of registering said specific third code with said first code storage means when the operation switch is turned on by using said second key after detecting that the operation switch is turned on and off the predetermined plurality of times by using said first key which is valid; wherein the anti-vehicle-thief apparatus includes engine control means for causing an engine to stop when said determination means determines that said first key is invalid, and said engine control means includes second code storage means for storing said specific first code, and second code comparison means for comparing said specific first code with said specific second code. - View Dependent Claims (9, 10, 11, 12)
- a first key having a specific second code;
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13. A code setting method of anti-vehicle-thief apparatus including first code storage means for storing a specific first code;
- a first key having a specific second code;
a second key having a specific third code which is different from said specific first and second codes;
first detection means for detecting whether or not an operation switch is turned on by using said first key;
code reading means for reading said specific second code from said first key when the operation switch is turned on by using said first key;
first code comparison means for comparing said specific first code stored in said first code storage means with said specific second code read by said code reading means; and
first determination means for determining whether said first key is valid where said specific second code is identical to said specific first, or invalid where said specific second code is not identical to said specific first code;
comprising;(a) a first detection step of detecting whether or not the operation switch is turned on by using said first key; (b) a comparison step of comparing said specific first code stored in said first code storage means with said specific second code read by said code reading means, (c) a second detection step of detecting whether or not the operation switch is turned on and off a predetermine plurality of times by using said first key; (d) a third detection step of detecting whether or not the operation switch is turned on by using said second key; (e) a registration step of registering said specific third code with said first code storage means when the operation switch is turned on by using said second key within a predetermined time period after the second detection step detects that the operation switch is turned on and off the predetermined plurality of times by using said first key; and (f) a fourth detection step of detecting whether or not the operation switch is turned on by using a third key within a predetermined time period after said second key is pulled out of the operation switch after said specific third code has been registered in said first code storage means, wherein, at the registration step, a specific fourth code is registered if the operation switch is turned on by using said third key within the predetermined time period, said third key having the specific fourth code which is different from said specific first, second, and third codes. - View Dependent Claims (14, 15, 16, 17)
- a first key having a specific second code;
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18. An anti-vehicle-thief apparatus, comprising:
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(a) a first code storage means for storing a specific first code; (b) a first key having a specific second code; (c) a second key having a specific third code which is different from said specific first and second codes; (d) first detection means for detecting whether or not an operation switch is turned on by using said first key; (e) code reading means for reading said specific second code from said first key when the operation switch is turned on; (f) first code comparison means for comparing said specific first code stored in said first code storage means with said specific second code read by said code reading means; (g) first determination means for determining whether said first key is valid where said specific second code is identical to said specific first code, or invalid where said specific second code is not identical to said specific first code; (h) second detection means for detecting whether or not the operation switch is turned on and off a predetermined plurality of times by using said first key which is valid; (i) first code registration means for registering said specific third code with said first code storage means when the operation switch is turned on by using said second key within a predetermined time period after the second detection means detects that the operation switch is turned on and off the predetermined plurality of times by using said first key; and (j) a third key having a specific fourth code which is different from said specific first, second, and third codes, wherein said first detection means detects whether or not the operation switch is turned on by using said third key within a predetermined time period after said second key is pulled out of the operation switch, after said specific third code has been registered in said first code storage means, and wherein said first code registration means registers said specific fourth code if the operation switch is turned on by using said third key within the predetermined time period. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
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Specification