AI Patent Summary

Patent Document
#US6985472B2
United States Patent
Abstract
Encoder and decoder microchips suitable for use in remote control devices, are disclosed. The encoder microchip com- prises means for performing an encoding function on an identification number embedded in the said microchip and a combination of a unit number and a stepping counter value, so as to generate a transmission value which is only decod- able by a related decoding function having access to the same identification number. The decoder microchip com- prises means for decoding the transmission value into a decoded unit number and a decoded counter value and means for comparing the decoded counter value with a decoder counter value range. The encoder and decoder microchips are provided with means for changing, e.g. in a preferred mode incrementing, the counter values by a num- ber greater than one after a period of time, subsequent to the encoder microchip being activated or the decoder microchip receiving a transmission value. The encoder and decoder microchips are also provided with means for synchronizing the decoder microchip with a particular encoder microchip which has generated a synchronization command. 17 Claims, 7 Drawing Sheets /~ 26 28 — t+ SYNC MEMORY oy RX COUNTER 0 }~17 ~--»| RX COUNTER 1 1-18 CONTROL... --»}| RX COUNTER 2 }-19 >» RX COUNTER 3 }~-20 OUTPUTS {____» PUSH BUTTON 1}-21 ——_4 »|PUSH BUTTON 2}-22 bam ———— SYNC 23 OTHER 2d
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Patent Classification & AI Product Mapping
Authoritative patent classification definitions mapped to real-world technology domains and commercial product categories.
CPC E05B49/00
Confidence: High
Official Definition
Electric permutation locks; Circuits therefor ; Mechanical aspects of electronic locks; Mechanical keys therefor
FIXED CONSTRUCTIONS > LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES > LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
AI Technology & Product Mapping
Technology Domain:
Electronic Access Control & Security Systems
Product Category:
Electronic Door Locks & Secure Access Controllers
Plain-English Summary:
Electronic combination or digital lock mechanisms, their driving circuitry, and the non-mechanical or electronic keys used to operate them.
Relation to Claims:
The patent provides encoder and decoder microchips implementing a stepping counter and cryptographic identity mechanism that functions as an electronic permutation lock logic, ensuring only authorized rolling codes unlock the device.
CPC G07C9/00
Confidence: High
Official Definition
Individual registration on entry or exit
PHYSICS > CHECKING-DEVICES > TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
AI Technology & Product Mapping
Technology Domain:
Physical Access Control & Authentication
Product Category:
Access Gateways & Facility Entry Verification Systems
Plain-English Summary:
Systems, methods, and apparatus used to identify, authenticate, or register individuals passing through entry or exit points.
Relation to Claims:
The encoder/decoder system authenticates unique transmission credentials (embedded identification numbers and synchronized counters) before authorizing access through an entry/exit checkpoint or barrier.
CPC G07C9/00174
Confidence: High
Official Definition
Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
PHYSICS > CHECKING-DEVICES > TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
AI Technology & Product Mapping
Technology Domain:
Embedded Systems & Wireless Key Architecture
Product Category:
Remote Keyless Entry (RKE) Transceivers & Key Fobs
Plain-English Summary:
Electronic locks, corresponding control circuits, and non-mechanical wireless credentials such as active or passive smart keys and fobs.
Relation to Claims:
The patent specifically details integrated circuit microchips (encoder and decoder) designed to serve as non-mechanical wireless keys and receiver circuits for electronically operated locks.
CPC G07C9/00182
Confidence: High
Official Definition
Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with unidirectional data transmission between data carrier and locks
PHYSICS > CHECKING-DEVICES > TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
AI Technology & Product Mapping
Technology Domain:
RF Telemetry & Rolling Code Cryptography
Product Category:
Unidirectional Rolling Code RF Modules
Plain-English Summary:
Electronic locking systems and non-mechanical keys that operate using one-way (unidirectional) wireless data transmission from the key to the lock.
Relation to Claims:
The disclosure focuses on an encoder microchip transmitting a generated transmission value to a receiving decoder microchip without requiring bidirectional negotiation, utilizing windowed stepping counter ranges to validate one-way transmissions.
CPC G07C2009/00206
Confidence: High
Official Definition
Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with unidirectional data transmission between data carrier and locks the keyless data carrier being hand operated
PHYSICS > CHECKING-DEVICES > TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
AI Technology & Product Mapping
Technology Domain:
Human-Machine Interface & Handheld Transmitters
Product Category:
Handheld Keyless Entry Remotes & Garage Door Openers
Plain-English Summary:
Handheld, user-actuated non-mechanical keys (such as push-button remote controls) that broadcast one-way authentication signals to a locking mechanism.
Relation to Claims:
The patent disclosure describes handheld remote control devices actuated by push buttons that activate the encoder microchip to generate and send synchronized rolling code transmissions.