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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02/19/2013 | US8378824 Image-forming system |
02/19/2013 | US8378790 Reader control system |
02/19/2013 | US8378789 RFID material tracking method and apparatus |
02/19/2013 | US8378788 Variable frequency tag |
02/19/2013 | US8378787 Method and apparatus for disabling a data tag device |
02/19/2013 | US8378786 Security provision in standards-compliant RFID systems |
02/14/2013 | WO2013023079A1 Backscatter stylus for use with touchscreen |
02/14/2013 | US20130041524 Smart trailer rfid system |
02/13/2013 | CN202738050U Building intercommunication system capable of monitoring air PM2.5 concentration values |
02/13/2013 | CN202738049U Bank interphone system |
02/13/2013 | CN202737892U 网络中央控制器系统 Network Central Controller System |
02/13/2013 | CN202737814U Self adaptive power amplifying circuit of UHF (ultra high frequency) band wireless digital interphone |
02/13/2013 | CN102036125B Portable digital radio group navigation system |
02/13/2013 | CN101278570B Truncation, compression, and encryption of rfid tag communications |
02/12/2013 | US8373562 Asset tracking system |
02/12/2013 | US8373545 EPC provisioning system using business rules |
02/12/2013 | US8373544 RFID apparatus |
02/12/2013 | US8373543 RFID transponder using ambient radiation |
02/12/2013 | US8373542 All-in-one radio frequency identification (RFID) system for sale and inventory management |
02/06/2013 | CN102917281A Electronic-type special wireless calling method |
02/06/2013 | CN102917280A Method for automatic commissioning test of interphone |
02/06/2013 | CN102917279A Subaudio frequency matching method and terminal |
02/06/2013 | CN102917278A Regional communication system with unilateral mandatory broadcast function |
02/05/2013 | US8369944 Wearable defibrillator with audio input/output |
02/05/2013 | US8368541 Method for memory mapping in a composite RFID tag facility |
02/05/2013 | US8368540 Wireless tracking system and method utilizing near-field communication devices |
02/05/2013 | US8368519 Packaging a semiconductor wafer |
02/05/2013 | US8368517 RFID privacy-preserving authentication system and method |
02/05/2013 | US8368516 Secure data exchange with a transponder |
02/05/2013 | US8368515 Dual mode RFID communication device operating as a reader or tag |
02/05/2013 | US8368514 Device for wireless operation and method for operating the device |
02/05/2013 | US8368513 Data separation in high density environments |
02/05/2013 | US8368512 RFID tag, method of manufacturing the RFID tag, and method of mounting the RFID tag |
02/05/2013 | US8368511 Method for monitoring a package, sentinel indicator system and logistics system |
01/31/2013 | US20130027189 Electronic price label system |
01/31/2013 | US20130027187 Security kiosk |
01/31/2013 | US20130027186 Ultralow-power implantable hub-based wireless implantable sensor communication |
01/30/2013 | CN202713549U Noise and echo eliminating circuit of network broadcast talkback communication station |
01/30/2013 | CN202713548U Hand-held wireless interphone |
01/30/2013 | CN202713547U Digital unidirectional broadcast terminal |
01/30/2013 | CN102904898A Communication method and communication device of building intercom system |
01/29/2013 | US8363254 Document management system |
01/29/2013 | US8362881 Method for storing data as well as a transponder, a read/write-device, a computer readable medium including a program element and such a program element adapted to perform this method |
01/29/2013 | US8362880 Method and computer program product for loading and executing program code at micro-processor |
01/29/2013 | US8362879 Apparatus and method for integrated reader and tag |
01/29/2013 | US8362878 Towel tracking system |
01/23/2013 | CN202696827U Wireless control microphone |
01/23/2013 | CN202696786U Portable wireless bidirectional intercommunication patrol terminal |
01/23/2013 | CN202694568U Auxiliary taxi calling system |
01/22/2013 | US8358202 Semiconductor device |
01/17/2013 | US20130015959 Rfid tag issuing apparatus and rfid tag misalignment detecting method |
01/16/2013 | CN202679548U Two-way intercommunication system for coal mine |
01/16/2013 | CN202679547U Signal input frequency selector for frequency modulation interphone |
01/16/2013 | CN202679546U Tower operation multichannel multidirection communication system |
01/16/2013 | CN202679545U Industrial sound amplification broadcast intercommunication system |
01/16/2013 | CN202679544U Finance business management infrared intercommunication system apparatus based on phase-locked loop technology |
01/16/2013 | CN202679543U Remote intercommunication connection device and remote intercommunication system |
01/16/2013 | CN202679409U A real-time voice intercom system based on a heterogenous mobile IP network |
01/16/2013 | CN202679354U Frequency selector for frequency modulation interphone |
01/16/2013 | CN202677541U Digital acousto-optic signal device |
01/16/2013 | CN102883233A Building intercom system and indoor machine/door phone |
01/15/2013 | US8354918 Light, sound, and motion receiver devices |
01/15/2013 | US8354917 RFID tag chips and tags complying with only a limited number of remaining commands and methods |
01/15/2013 | US8354916 Radio interrogator system and radio communication method therefor |
01/10/2013 | US20130009749 Method of neighborhood watch implemented in-part with electronic surveillance system |
01/09/2013 | CN202663515U Multifunctional microphone of police vehicle-mounted central control system |
01/09/2013 | CN202663494U Face recognition visible interphone for building |
01/09/2013 | CN102868975A Interphone with embedded global system for mobile communications (GSM) module |
01/09/2013 | CN102868942A Voice transmission method and device based on building intercom system, and building intercom system |
01/09/2013 | CN102868941A Controllable interphone and method for realizing control safety communication of interphones |
01/09/2013 | CN102868940A Simple simplex wireless paging system |
01/09/2013 | CN102868838A Gateway device capable of taking telephone as branch cell interphone and control method thereof |
01/08/2013 | US8350677 System and method for integrating asset tagging with a manufacturing process |
01/08/2013 | US8350676 System and method for allowing multiple RFID reader devices to read RFID tags without collision |
01/08/2013 | US8350674 RFID tag including a loop antenna and RFID system using the RFID tag |
01/08/2013 | US8350673 Methods and apparatus for preserving privacy in an RFID system |
01/08/2013 | US8350668 Smartcard protocol transmitter |
01/08/2013 | US8350665 RFID reader systems detecting pilot tone |
01/03/2013 | US20130002407 Rf-link margin measurement method and system |
01/03/2013 | US20130002406 Electronic label system and operation method thereof |
01/03/2013 | US20130002405 Method and apparatus for sensory tags providing sound, smell and haptic feedback |
01/02/2013 | CN202652476U Hand-held microphone with intercommunication function |
01/02/2013 | CN202652447U Multifunctional interphone for train wireless dispatching |
01/02/2013 | CN202652446U Multipurpose interphone |
01/02/2013 | CN202652445U Hand-held interphone |
01/02/2013 | CN202652444U Multifunctional interphone shoulder microphone |
01/02/2013 | CN202652443U Video intercommunication telephone adapter |
01/02/2013 | CN202652442U Wireless interphone monitoring system based on MAP 27 protocol |
01/02/2013 | CN202652441U Portable Bluetooth cluster full-duplex intercom |
01/02/2013 | CN202652423U Window interphone |
01/02/2013 | CN202652402U Video intercommunication management center machine capable of simultaneously accessing video pictures from four channels |
01/02/2013 | CN202652206U Modular wireless interphone used for teaching |
01/02/2013 | CN202652201U Interphone for railway dangerous situation positioning and safety warning |
01/02/2013 | CN102147605B Scatter centralized control method for equipment monitoring and automatic calling unit |
01/02/2013 | CN101998114B Visual talkback method and system |
01/01/2013 | US8346210 Method and apparatus for managing services using bearer tags |
01/01/2013 | US8344889 Side loaded shorted patch RFID tag |
01/01/2013 | US8344858 Steerable phase array antenna RFID tag locater and tracking system and methods |
01/01/2013 | US8344857 RFID tags with synchronous power rectifier |
01/01/2013 | US8344856 Position detecting system and cable unit |