Patents
Sitemap › H04 - Electric communication technique › H04Q - Selecting › H04Q 5 - Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange
Patents for H04Q 5 - Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange (6,717)
06/2012
06/26/2012US8207823 Integrated circuit and method for writing information
06/26/2012US8207822 Support for batching of events, and shredding of batched events in the RFID infrastructure platform
06/21/2012US20120158449 Data Processing for Hiring Equipment
06/21/2012US20120154119 Interactive personal property location system
06/20/2012CN102510545A Digital-analog compatible method for fishery digital interphone
06/20/2012CN102510544A Digital fishery interphone private protocol control method using 4FSK (Frequency Shift Keying)
06/19/2012US8203435 Triggering document generation using RFID tags
06/19/2012US8203434 Wireless power feeding system and capsule endoscope system applied with the same
06/19/2012US8203431 Method of processing data, electronic device and transponder
06/19/2012US8203430 Device, system and method for compensating signal delays in an RFID communication system
06/19/2012US8203429 Switched capacitance method for the detection of, and subsequent communication with a wireless transponder device using a single antenna
06/19/2012US8203427 RFID direction trigger driver
06/14/2012WO2012078234A1 Managing a plurality of radio frequency identification devices
06/14/2012US20120147798 Method and apparatus for initializing an rfid tag via an optical display
06/14/2012US20120146789 Automated monitoring and control of safety in a production area
06/14/2012US20120146773 Random-id function for smartcards
06/14/2012US20120146772 Controlling radio frequency identification tag signal range
06/14/2012US20120146770 Arrow with Embedded Deployable RFID Tag and the Methods of Using and Tracking the Same
06/14/2012CA2810407A1 Managing a plurality of radio frequency identification devices
06/12/2012US8199022 Test module for motor control center subunit
06/12/2012US8198987 Radio tag reading device and radio tag recognition method using the device
06/12/2012US8198986 System and method for storing and retrieving equipment inspection and maintenance data
06/12/2012US8198985 Automatic mode detection in a dual operating mode RFID tag
06/12/2012US8198984 Method, RFID reader, RFID tag and RFID system for secure communication
06/12/2012US8198983 Semiconductor integrated circuit and non-contact electronic device using the same
06/07/2012US20120139711 Method and apparatus to estimate the number of transponders in a field
06/07/2012US20120139707 Supported radio frequency identification (rfid) tag
06/07/2012US20120139705 Media transaction kiosk and method
06/06/2012CN202268987U 带北斗定位功能的对讲机 Walkie-talkie function with Beidou
06/06/2012CN102487464A Civil confidential frequency hopping interphone
06/06/2012CN101147404B System and method for RFID reader operation
06/05/2012US8193939 Wireless IC device
06/05/2012US8193916 RFID transmitter
06/05/2012US8193915 Multiple transceiver synchronous communication system
06/05/2012US8193914 Adaptable filter and method for filtering a radio frequency identification signal
06/05/2012US8193913 Communication and distance measurement in an addressed wide band RFID system
06/05/2012US8193912 RFID tag dynamically adjusting clock frequency
06/05/2012US8193910 Interrogator, transponder and transponder identification method
05/2012
05/31/2012US20120133510 Physical infrastructure management system having an integrated cabinet
05/30/2012CN202261691U IP (Internet Protocol)-network-based conversation station
05/30/2012CN202261690U Wireless talkback sudden stopping and shutting device for crane
05/30/2012CN202261689U Multichannel intercom system
05/30/2012CN202261688U Digital time-division wireless shunting system
05/30/2012CN202261687U Wireless emergency beeper
05/30/2012CN202261686U Anti-drowse interphone
05/30/2012CN202261315U Multifunctional SOS voice alarm and rescue system
05/30/2012CN202261263U Digital interphone arranged in gas mask
05/30/2012CN202257215U Dispatcher controller for digital dispatch and dispatch list transmission system
05/30/2012CN202256356U Multifunctional apparatus for detecting alcohol content in expired air
05/30/2012CN101729695B Wired multi-seat paging talkback method and device for reader positioning mobile personnel
05/29/2012US8188841 Method of remote powering and detecting multiple UWB passive tags in an RFID system
05/29/2012US8188840 Authenticating method and identification system
05/29/2012US8188839 Truncation, compression, and encryption of RFID tag communications
05/24/2012US20120130568 Data communication system for a rail vehicle consist and method for communicating data with a rail vehicle consist
05/24/2012US20120127976 Radio frequency identification system and related operating methods
05/24/2012US20120126955 Active energy harvesting for radio-frequency identifcation devices
05/24/2012US20120126952 Communication Method in RFID or Remote Sensor Systems
05/24/2012US20120126951 High reliability pest detection
05/23/2012EP1938118B1 System and method for validating radio frequency identification tags
05/23/2012CN202231831U Police and police car talkback positioning command system
05/23/2012CN202231830U Multi-protocol soft-core digital interphone
05/23/2012CN202231829U Digital interphone based on non-peer-to-peer protocol
05/23/2012CN202231828U Medical bed bell calling system
05/23/2012CN202231827U Wireless interphone with channel-switch voice broadcasting function
05/23/2012CN202231826U Intelligent voice recognition building intercom device
05/23/2012CN202231771U Test platform of building intercom system of intelligent district
05/23/2012CN102014595B Installation box of embedded indoor unit
05/22/2012US8184981 Simplifying and cost-effective IR-RF combat identification friend-or-foe (IFF) system for ground targets
05/22/2012US8183986 Toll transponder with deactivation means
05/22/2012US8183985 Method and device for the power-saving operation of RFID data carriers
05/22/2012US8183984 Method and device for the power-saving operation of a plurality of RFID data carriers
05/22/2012US8183983 Method for the at least temporary activation of bidirectional communication and transponder
05/22/2012US8183982 System including reply signal that at least partially overlaps request
05/17/2012US20120123219 Method and system for controlling medical monitoring equipment
05/17/2012US20120119885 Methods, Systems, and Products for Discovering Electronic Devices
05/17/2012US20120119884 Electronic device and method for rfid
05/17/2012US20120119881 Information management using a custom identifier stored on an identification tag
05/16/2012CN102457783A 广电三网融合管控系统及方法 Radio and TV triple play control system and method
05/16/2012CN102457369A 现场显示指挥系统 Site display command system
05/15/2012US8179264 Radio frequency identification tag device for metallic products
05/15/2012US8179258 Method for reading a tag
05/15/2012US8179233 UHF timing system for participatory athletic events
05/15/2012US8179232 RFID interrogator with adjustable signal characteristics
05/15/2012US8179231 Transmission delay based RFID tag
05/10/2012US20120117585 Method and system for applying content restrictions to renderers in identified network viewing areas
05/10/2012US20120112883 Disease Mapping and Infection Control System and Method
05/09/2012CN202218404U Digital common-frequency broadcasting network system
05/09/2012CN202218337U Integrated service digital network video talkback door bell
05/09/2012CN202211401U Communication system and office furniture with built-in communicator
05/08/2012USRE43355 Multi-frequency identification device
05/08/2012US8174388 Method and system for deactivation of combination EAS/RFID tags
05/08/2012US8174368 Reading method, responder, and interrogator
05/08/2012US8174367 Causing RFID tags to backscatter more codes
05/08/2012US8174366 Interrogator and interrogation system employing the same
05/08/2012US8174365 IC tag, method of controlling the IC tag, and IC tag system
05/08/2012US8174364 Automatic means to trigger RFID transmitters
05/08/2012US8174362 Methods and apparatuses to secure data transmission in RFID systems
05/08/2012US8174361 Phase shifters, interrogators, methods of shifting a phase angle of a signal, and methods of operating an interrogator
05/08/2012US8174360 Communication apparatus for setting up a data connection between intelligent devices
05/08/2012US8174356 RFID enabled access control system
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