| Patents for H04Q 5 - Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange (6,717) |
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| 06/05/2013 | CN202967785U Elevator interphone system with online self-detection function |
| 06/05/2013 | CN103139668A Building access control intercom system based on cable television system |
| 06/05/2013 | CN103139667A Building assess control intercom system based on community broadband |
| 06/05/2013 | CN103139549A Portable multidirectional wireless monitoring back box |
| 06/05/2013 | CN103138854A Method of detecting subaudio frequency signals and device using the same |
| 06/05/2013 | CN103138796A Data management routine (DMR) digital interphone supporting relaying and forwarding of identical and different frequencies |
| 06/05/2013 | CN101917206B Integrated talkback chip and integrated talkback system with dual tone multiple frequency coding and decoding function |
| 06/04/2013 | US8456283 Device and method for suppressing a transmitted signal in a receiver of an RFID writing/reading device |
| 06/04/2013 | US8456282 Synchronization of devices in a RFID communications environment |
| 06/04/2013 | US8456281 Non-contact IC medium communication device |
| 06/04/2013 | US8456280 Product carrier and system made up of product carrier and receiver unit |
| 05/29/2013 | CN202957941U Plug-and-play networking digital intercommunication system |
| 05/28/2013 | US8451100 Use of a transponder for servicing work on an installation component |
| 05/28/2013 | US8451097 RFID interrogator with improved symbol decoding and methods based thereon |
| 05/28/2013 | US8451096 RFID read/write station and a method for operating such |
| 05/28/2013 | US8451095 Systems and methods for interrogator multiple radio frequency identification enabled documents |
| 05/28/2013 | US8451094 Phase hopping to reduce interference and improve radio frequency identification (RFID) tag throughput |
| 05/28/2013 | US8451092 Method and apparatus for efficiently querying and identifying multiple items on a communication channel |
| 05/28/2013 | US8451089 Radio identification with an additional close-range check |
| 05/28/2013 | US8451070 Self-powered microelectromechanical oscillator |
| 05/28/2013 | US8450017 Fuel-cell-based cogeneration system with radio frequency identification sensors |
| 05/22/2013 | CN202949529U Digital wireless voice multi-party call system |
| 05/22/2013 | CN103118306A Building intercom system and method utilizing voice to open door of building intercom system top stair machine |
| 05/22/2013 | CN103118305A Building intercom system capable of realizing firefighting/monitoring linkage and linkage method |
| 05/21/2013 | US8446260 Group proving method and radio frequency identification reader and tags using thereof |
| 05/21/2013 | US8446259 Authentication of an electromagnetic terminal-transponder couple by the transponder |
| 05/21/2013 | US8446258 Causing RFID tag to change how many remaining commands it will comply with |
| 05/21/2013 | US8446257 Radio frequency charging system |
| 05/21/2013 | US8446256 Multiplexing radio frequency signals |
| 05/21/2013 | US8446255 Circuit for transmitting a RFID signal |
| 05/21/2013 | US8446254 Methods and apparatuses for RFID tag range determination |
| 05/15/2013 | CN202939784U Fire fighting truck rescue communication platform |
| 05/15/2013 | CN103108258A Telephone intercom system |
| 05/14/2013 | US8443210 Power management module enforcing computer power capping by reading power cap information from nameplate having both machine readable module and human readable designation for providing such information |
| 05/14/2013 | US8441342 Pseudo-random authentification code altering scheme for a transponder and a base station |
| 05/14/2013 | US8441341 System, apparatus, and method for PCB-based automation traceability |
| 05/14/2013 | US8441340 Tag communication devices |
| 05/14/2013 | US8441339 Displacement detector, displacement detection apparatus, displacement detection system, loosening detector, loosening detection apparatus, and loosening detection system |
| 05/14/2013 | US8441338 RFID enabled media system and method |
| 05/09/2013 | US20130113611 Data transmission method in passive communication system |
| 05/09/2013 | US20130113605 Securing Radio-Frequency Identification Systems |
| 05/08/2013 | CN202931508U Elevator wireless intercommunication transmission system |
| 05/08/2013 | CN202931507U Taxi calling apparatus |
| 05/08/2013 | CN202931506U Interphone wireless communication apparatus |
| 05/08/2013 | CN202931308U Wireless call service system for marketplaces |
| 05/08/2013 | CN103096246A Vehicular intercom device, intercom servicer, vehicle driving location displaying method and system |
| 05/08/2013 | CN103096186A Vehicle device and vehicle interphone device and off-line connecting method of vehicle interphone device |
| 05/08/2013 | CN103095756A Intercom device of vehicle and running vehicle shared information mass texting method and system |
| 05/08/2013 | CN103095715A Full-digital building intercom system and authentication method based on session initiation protocol (SIP) |
| 05/07/2013 | US8436718 Noncontact communication apparatus and noncontact communication method |
| 05/07/2013 | US8436717 Rotation-activated electronic component |
| 05/07/2013 | US8436716 Method of upgrading an operation program of a radio frequency identification system |
| 05/07/2013 | US8436715 System and method for displaying and managing electronic menus |
| 05/07/2013 | US8436714 Battery assisted RFID command set and interference control |
| 05/02/2013 | US20130106575 Control of wireless identification tag activation |
| 05/01/2013 | CN202918452U GSM (Global System for Mobile Communication) earphone speech assistor |
| 05/01/2013 | CN202916890U Intelligent building video door phone system with palm vein recognition function |
| 05/01/2013 | CN103079118A Multi-function field interphone |
| 05/01/2013 | CN101609513B 半导体器件及其驱动方法 Semiconductor device and method of driving |
| 04/30/2013 | US8432567 Printer and scale for handling RFID labels |
| 04/30/2013 | US8432265 Wireless sensor reader |
| 04/30/2013 | US8432263 System and method for the collection, storage, analysis and reporting of event information |
| 04/30/2013 | US8432262 Multiple near field communication tags in a pairing domain |
| 04/30/2013 | US8432261 Simplified device pairing employing near field communication tags |
| 04/30/2013 | US8432260 Simplified vehicle bluetooth pairing employing near field communication tags |
| 04/30/2013 | US8432259 Picking system |
| 04/30/2013 | US8432258 Apparatus and method facilitating communication between components of a radio frequency identification system |
| 04/30/2013 | US8432257 Merchandise-integral transaction receipt and auditable product ownership trail |
| 04/30/2013 | US8432256 Information providing service system for railroad users |
| 04/30/2013 | US8432254 Semiconductor device |
| 04/30/2013 | US8432253 Zone determination by combining signal strength with topological factors |
| 04/25/2013 | US20130099899 Systems and Methods for Verifying a Chip |
| 04/24/2013 | CN202907124U Interphone combined with watch |
| 04/24/2013 | CN202907123U An interphone and a cell phone assembly containing the same |
| 04/24/2013 | CN103067794A Audio sampling controlling method of interphone and interphone |
| 04/24/2013 | CN103067793A Intercom device between server and vehicles and off-line communication method and system between vehicles |
| 04/24/2013 | CN103067323A Intermediate frequency demodulating device applied to interphone |
| 04/24/2013 | CN103067046A Four-wire system indoor unit off-hook detection circuit |
| 04/23/2013 | US8427282 Identification system |
| 04/23/2013 | US8427281 Apparatus for reading RFID tag information and RFID tag information reading system |
| 04/23/2013 | US8427280 Semiconductor device |
| 04/23/2013 | US8427279 Multi-protocol RFID system using bit-lock or step-lock synchronization |
| 04/23/2013 | US8424765 MEMS barcode device for monitoring medical systems at point of care |
| 04/17/2013 | CN103052035A Communication method and system among vehicles and server for communication among vehicles |
| 04/17/2013 | CN103051648A Communication method and system among vehicles and server for communication among vehicles |
| 04/17/2013 | CN103051351A Detachable and washable interphone for dustproof structure of loudspeaker |
| 04/16/2013 | US8421630 Coordinated storage system in a multiple radio frequency network node RFID tag |
| 04/16/2013 | US8421601 Active/passive RFID transponder control function |
| 04/16/2013 | US8421600 Utilizing an RFID tag in manufacturing for enhanced lifecycle management |
| 04/16/2013 | US8421599 Apparatus and method for providing URL, mobile station, and method for accessing internet by using the provided URL |
| 04/16/2013 | US8421598 Battery assisted RFID system RF power and interference control |
| 04/16/2013 | US8421597 Remote control apparatus and portable communication terminal |
| 04/11/2013 | WO2013052272A1 Multi-frequency bulk rfid tag commissioning |
| 04/11/2013 | US20130088335 Mobile device staging with rfid tags |
| 04/11/2013 | US20130088333 Multimedia device having detachable controller |
| 04/11/2013 | US20130088332 Remote controller and control method for a multimedia device |
| 04/10/2013 | CN202873006U Police trunking interphone provided with law enforcement recorder |
| 04/10/2013 | CN202873005U Indoor terminal of intercom device applied to hearing loss people |
| 04/10/2013 | CN103036585A Interphone provided with waterproof structures |
| 04/09/2013 | US8416063 Method and apparatus for stopping power supply in RFID system |