Patents
Sitemap › H04 - Electric communication technique › H04B - Transmission › H04B 5 - Near-field transmission systems, e.g. inductive loop type
Patents for H04B 5 - Near-field transmission systems, e.g. inductive loop type (17,859)
08/1996
08/20/1996US5548815 Inductive radio communication system
08/20/1996US5548282 Electronic shelf edge price display system
08/08/1996DE19503744A1 HF signal transmission and reception appts. for use in tunnel e.g. for railway communication
08/08/1996DE19503440A1 Two way communication of high frequency signals in tunnel between rail vehicle and station
08/07/1996EP0725556A2 Method and apparatus for transmitting data from a cooking vessel to a cooking unit
08/07/1996EP0725377A2 System and method for tracking vehicles in vehicle lots
08/01/1996WO1996023373A1 Communication method
08/01/1996CA2216416A1 Communication method
07/1996
07/30/1996US5542118 Induction field coupled transmission system incorporating a passive transmitter
07/30/1996US5541583 Arrangement for interrogating portable data communication devices
07/30/1996US5541399 RF transponder with resonant crossover antenna coil
07/17/1996EP0520052B1 Addressing arrangement
07/16/1996US5537637 Medium-frequency radio broadcasting retransmission system for confined and electromagnetically shielded areas
07/16/1996US5537126 Article-information display system using electronically controlled tags
07/03/1996CN2230485Y Off-line sensing-communication speakerphone for mine
06/1996
06/26/1996CN1032178C 通信系统 Communications systems
06/20/1996WO1996018969A1 Contactless data transmission system
06/20/1996DE4443298A1 Localising and identifying vehicles, e.g. stolen cars
06/12/1996EP0715752A1 Article-information display system using electronically controlled tags
06/11/1996US5525994 Transponder interface circuit
06/11/1996US5525907 Active impulse magnetometer with bipolar magnetic impulse generator and fast fourier transform receiver to detect sub-surface metallic materials
06/06/1996WO1996017441A1 Receiving circuit
06/05/1996CN1123995A A small domain communications system for personalied shopping assistance
05/1996
05/29/1996EP0714073A1 Terminal for contactless communication with portable articles
05/28/1996US5521601 Power-efficient technique for multiple tag discrimination
05/23/1996DE19541634A1 Berührungsloses Chipkartensystem und Zugangsvorrichtung sowie Antennenvorrichtung Contactless smart card system and access device and the antenna device
05/23/1996CA2163396A1 Marker for contact-free communication with portable objects
05/21/1996US5519386 Data exchange system
05/09/1996WO1996013804A1 Contactless energy and data transmission system
05/09/1996WO1996013792A1 Contactless energy and data transmission system
05/09/1996DE4438287C1 System zur kontaktlosen Energie- und Datenübertragung System for contactless energy and data transmission
05/09/1996DE4438286C1 System zur kontaktlosen Energie- und Datenübertragung System for contactless energy and data transmission
05/08/1996EP0711040A1 Frequency generator wit a high stability
05/05/1996CA2161938A1 Highly stable frequency generator
04/1996
04/17/1996EP0707388A1 Signal transmission device using a fixed and a rotatable body
04/17/1996EP0706732A1 Short range inductively coupled communication system employing time variant modulation
04/16/1996US5508662 Variable frequency inductive proximity sensor
04/11/1996WO1996010878A1 Very low power cordless headset system
04/03/1996EP0704928A2 RF transponder system with parallel resonant interrogation and series resonant response
04/03/1996EP0704816A2 RF transponder with resonant crossover antenna coil
04/03/1996EP0704815A2 High field programmable transponder system and method
04/03/1996EP0704814A2 Magnetic coupling circuit-driving system
04/03/1996EP0704120A1 Data transmission device
04/03/1996EP0335931B1 Shopping cart display system
04/02/1996US5504775 Multi-user spread spectrum communication system
04/02/1996US5504475 Pricing display system
03/1996
03/28/1996WO1996009619A1 Article-information display system using electronically controlled tags
03/27/1996CN1119378A Arrangement for simultaneously interrogating a plurality of portable radio frequency communication devices
03/27/1996CN1031443C Pronunciation and digital compatible full-automatic wireless paging system
03/21/1996WO1996008880A1 Cable-less data-enquiry method and device
03/14/1996WO1996008054A1 Antenna coil
03/14/1996DE4432324A1 Vorrichtung f}r eine Einrichtung zur drahtlosen Informationsabfrage und Verfahren zur Herstellung der Vorrichtung Device f} r a device for wireless information retrieval and method for manufacturing the device
03/13/1996EP0701234A1 Transmitter for pulsed electronic article surveillance systems
03/07/1996DE4431603A1 Antennenspule Antenna coil
03/06/1996CN2221843Y Radio communication bar code reading automatic control dishes-ordering device
03/05/1996US5496003 System for transmission of information between the ground and moving objects, in particular in ground-train communications
02/1996
02/28/1996CN2221270Y Multifunctional wireless remote-control mains device
02/21/1996EP0697670A1 A small domain communications system for personalized assistance
02/21/1996CN2220706Y Wireless remote controllor for air purifier
02/20/1996CA2154603A1 Small domain communications system for personalized shopping assistance
02/14/1996EP0696783A1 Electronic article surveillance system having enhanced tag deactivation capacity
02/14/1996EP0696778A1 Electronic tag and contactless object identification system, particularly for metal objects
02/14/1996CN2220138Y Radio alarm for thing mislaid
02/01/1996DE4426908A1 Electrical isolation of two signal circuits for SMD on PCB
01/1996
01/31/1996EP0695074A2 Apparatus for plural automatic pagings and method therefor
01/30/1996US5488376 Transponder interface circuit
01/25/1996WO1996002008A1 Device for measuring position and orientation using non-dipole magnetic fields
01/16/1996US5485154 Communication device and method(s)
01/10/1996CN1114803A Trainline system using an electromagnetic communication link
01/10/1996CN1030676C Communication system for mining vertical shaft
01/04/1996DE4422325A1 Radio local area network
12/1995
12/27/1995EP0688454A1 Multi-mode identification system
12/26/1995US5479171 For use in a tire
12/26/1995US5479160 Low level RF threshold detector
12/20/1995CN1113620A Pager
12/19/1995US5477215 Arrangement for simultaneously interrogating a plurality of portable radio frequency communication devices
12/14/1995DE4444984C1 Contactless data transmission system using inductive or capacitive coupling
12/13/1995CN2215162Y Wireless earphone
12/05/1995CA2075078C Process for remote action taking, especially in a nuclear waste deep storage site
11/1995
11/30/1995WO1995028775A3 Data transmission device
11/29/1995EP0683941A1 Contactless data/power bus
11/22/1995CN1112315A Radio R-T unit
11/21/1995US5469142 Electronic article surveillance system having enhanced tag deactivation capacity
11/08/1995EP0681254A1 Passive transponder
11/08/1995CN1111440A 接收机 Receiver
11/07/1995US5465395 Communication via leaky cables
11/07/1995CA2036378C Proximity detecting apparatus
10/1995
10/26/1995WO1995028775A2 Data transmission device
10/25/1995EP0678759A1 Inductive proximity detector with adjustable frequency
10/24/1995US5461386 Inductor/antenna for a recognition system
10/19/1995DE4412958A1 Datenübertragungseinrichtung Data transmission device
10/03/1995US5455466 Inductive coupling system for power and data transfer
09/1995
09/27/1995EP0674298A1 High speed read/write automatic vehicle identification system
09/20/1995EP0417267B1 Vehicle tire identification system
09/20/1995CN2208299Y Wireless earphone of TV set
09/13/1995EP0671702A1 Microwave short-range identification system
09/13/1995EP0671084A1 Selective call signaling system and method with combined wide area paging and high data rate transmissions via radio telephone transceivers
09/13/1995EP0390822B1 Identification apparatus and method
09/13/1995CN1029764C Communication and controlling method for motor vehicle during running
09/12/1995US5450076 Method for reducing power loss in devices for contactless data and energy transmission, and apparatus for performing the method
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