| 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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| 01/19/2012 | US20120013448 System and method for enhanced rfid instrument security |
| 01/19/2012 | US20120013440 Method and Apparatus Pertaining to Module-Based Scanning of RFID Tags |
| 01/18/2012 | EP1743271B1 Method and apparatus for improving the efficiency and accuracy of rfid systems |
| 01/18/2012 | CN202121733U Interphone system |
| 01/18/2012 | CN202121732U Mining communication device |
| 01/18/2012 | CN202121656U Intelligent hearing protection and tactical communication system |
| 01/18/2012 | CN202121579U Anti-interference device for elevator voice intercommunication |
| 01/18/2012 | CN102325277A Nurse station information distribution call receiving device |
| 01/18/2012 | CN102325276A Digital calling device for patient in bed of hospital |
| 01/18/2012 | CN102323911A Wireless intercom parameter configuration method |
| 01/17/2012 | US8099102 Call admission control device and call admission control method |
| 01/17/2012 | US8099048 Wireless communication system using surface acoustic wave (SAW) second harmonic techniques |
| 01/17/2012 | US8098139 Test head device |
| 01/17/2012 | US8098138 Tracking system using radio frequency identification technology |
| 01/17/2012 | US8098137 Media passport system |
| 01/17/2012 | US8098136 Integrated switch systems and methods for locating identification tags |
| 01/17/2012 | US8098135 Coordination of radio frequency communications amongst radio frequency identification (RFID) readers |
| 01/17/2012 | US8098134 Systems and methods for interrogator multiple radio frequency identification enabled documents |
| 01/17/2012 | US8098133 Radio frequency identification tag |
| 01/12/2012 | US20120007723 Interrupt generation and acknowledgment for rfid |
| 01/12/2012 | US20120007722 Rfid access method using an indirect memory pointer |
| 01/12/2012 | US20120007721 Fast block write using an indirect memory pointer |
| 01/12/2012 | US20120007720 Low power, low pin count interface for an rfid transponder |
| 01/12/2012 | US20120007719 Wireless communication device and wireless communication method |
| 01/12/2012 | US20120007718 Radio frequency identification signal receiving device and positioning system using the same |
| 01/12/2012 | US20120007717 Cables and connector assemblies employing a furcation tube(s) for radio-frequency identification (rfid)-equipped connectors, and related systems and methods |
| 01/12/2012 | US20120007716 Rfid tag tracking system and rfid tag tracking method |
| 01/11/2012 | CN202111801U Wireless visual talkback doorbell system |
| 01/11/2012 | CN202110641U Alarming system |
| 01/11/2012 | CN101817467B Elevator calling method and device |
| 01/10/2012 | US8093990 Far field RFID reader with blocking |
| 01/10/2012 | US8093989 Method and system for scheduling multi-radio-frequency-identification-tag-reader networks to increase interrogation efficiency |
| 01/05/2012 | US20120002976 Identification and communication systems |
| 01/05/2012 | US20120002761 Wireless Communication Method For Magnetic Field Communication Network and Demodulation Device of Coordinator |
| 01/05/2012 | US20120002025 Method for detecting a viewing apparatus |
| 01/05/2012 | US20120001737 Method and system for computed radiography |
| 01/05/2012 | US20120001736 Method and apparatus for efficiently querying and identifying multiple items on a communication channel |
| 01/05/2012 | US20120001735 Extended range passive wireless tag system and method |
| 01/05/2012 | US20120001734 Led based identification and communication systems |
| 01/05/2012 | US20120001733 Information processing apparatus, information processing method, and program |
| 01/05/2012 | US20120001732 Variable rate preamble detection using ratiometric methods |
| 01/04/2012 | CN202103806U Medical calling system |
| 01/04/2012 | CN202103805U Scheduling call prompting apparatus for airplane refueling truck |
| 01/04/2012 | CN202103804U Video entryphone provided with electronic peephole |
| 01/04/2012 | CN102307322A Voice and data synchronous transmission method at DMR (digital mobile radio) terminal |
| 01/04/2012 | CN102307075A Voice transmission encryption method of DMR (digital mobile radio) communication terminal |
| 01/03/2012 | US8090365 Methods, systems and storage media to remotely control a wireless unit |
| 01/03/2012 | US8089371 Logical floor determination for a wireless device using weighted AP received signal strengths |
| 01/03/2012 | US8089354 Wireless tracking system and method for backhaul of information |
| 01/03/2012 | US8089344 Method and system for miniature passive RFID tags and readers |
| 01/03/2012 | US8089340 Real-time screening interface for a vehicle screening system |
| 01/03/2012 | US8087577 Radio frequency identification tag reader and method |
| 12/29/2011 | US20110317594 Hybrid architecture for radio frequency identification and packet radio communication |
| 12/29/2011 | US20110316675 Apparatus for communicating wtih rfid tag |
| 12/29/2011 | US20110316673 Rfid tag and method receiving rfid tag signal |
| 12/28/2011 | CN202095056U 电台数字录音监听报警联动系统 Radio digital audio monitoring alarm linkage system |
| 12/28/2011 | CN202094911U 智能化酒店管理系统及其终端对讲机 Intelligent hotel management system and its terminal intercom |
| 12/28/2011 | CN102300131A 一种用于对讲机抗干扰的装置和相关系统 A walkie-talkie interference devices and related systems |
| 12/28/2011 | CN102300078A 应急救援联合通信音视频指挥系统 Yonhap News Agency emergency rescue command system of audio and video |
| 12/28/2011 | CN102300072A 楼宇可视对讲方法、装置和系统 Building Intercom method, apparatus and system |
| 12/27/2011 | US8085133 RFID interrogator |
| 12/27/2011 | US8085132 Method and apparatus for resolving RFID-based object traffic transactions to a single object in the presence of a plurality of objects |
| 12/27/2011 | US8085130 Radio frequency identification tag |
| 12/22/2011 | US20110309955 Radio frequency identification interface devices and methods |
| 12/21/2011 | CN202085281U 一种室内/室外语音通讯对讲系统 One kind of indoor / outdoor voice intercom system |
| 12/21/2011 | CN202085280U 专用模拟对讲与数字对讲系统一体化驳接的无线对讲系统 Dedicated analog and digital intercom system intercom connections are wireless intercom system integration |
| 12/21/2011 | CN202085157U 一种多功能手持通讯终端机 A multifunctional handheld communication terminal |
| 12/21/2011 | CN102291630A 一种对讲机系统 One kind of intercom system |
| 12/20/2011 | US8081063 Systems and methods for Q value determination |
| 12/20/2011 | US8081061 Mobile RFID reader and method of eliminating a transmission leakage signal |
| 12/20/2011 | US8081060 System and method for communications establishment |
| 12/15/2011 | US20110304442 Recognizing tire sensor location in factory mode for tpms and smart entry system |
| 12/15/2011 | US20110304441 Multilane vehicle tracking system |
| 12/15/2011 | US20110304440 Rfid devices using a common master clock and methods thereof |
| 12/15/2011 | US20110304439 Devices employing fast carrier cancellation and methods thereof |
| 12/15/2011 | US20110304437 Antenna and Sensor System for Sharply Defined Active Sensing Zones |
| 12/15/2011 | US20110304436 Communication device and communication method |
| 12/15/2011 | US20110304435 Secure method for transmitting data |
| 12/15/2011 | US20110304433 Towel tracking system |
| 12/15/2011 | US20110304432 Devices employing modulator switching and methods thereof |
| 12/15/2011 | US20110304431 Devices employing delay matching to mitigate local oscillator noise and methods thereof |
| 12/14/2011 | EP1080561B1 Forwarding variable-length packets in a multiport switch |
| 12/14/2011 | CN202077159U 一种感应式单元门口机键盘 An inductive cell door Keyboard |
| 12/14/2011 | CN202077158U 一种自动降噪与agc音量控制楼宇对讲系统 Agc an automatic volume control and noise reduction building intercom system |
| 12/14/2011 | CN202077157U 多路电话选择器 Multiple phone selector |
| 12/14/2011 | CN202077129U 防雷楼宇对讲系统 Lightning building intercom system |
| 12/14/2011 | CN202077128U 半数字可视对讲系统 Semi-digital video intercom system |
| 12/14/2011 | CN102281476A 对讲机同频同播系统 Walkie-talkie with the same frequency broadcast system |
| 12/13/2011 | US8077014 Method, apparatus, and system for radio frequency identification (RFID) tag association and relative positioning |
| 12/13/2011 | US8077013 RFID reader Q-parameter aided by RF power measurement |
| 12/13/2011 | US8077012 RFID device with first clock for data acquisition and/or calibration of second clock |
| 12/13/2011 | US8077011 Apparatus for automatically initiating sequence of vehicle functions |
| 12/13/2011 | US8077010 RFID interrogator device |
| 12/08/2011 | WO2011153037A2 Method and apparatus for using boarding passes to apply business rules |
| 12/08/2011 | US20110298617 Radio frequency identification devices, remote communication devices, identification systems, communication methods, and identification methods |
| 12/08/2011 | US20110298607 Low-cost high-fidelity asset tracking in data center facilities |
| 12/08/2011 | US20110298592 Rfid apparatus and control method of same |
| 12/08/2011 | US20110298591 Methods and Apparatus for Switching A Transponder To an Active State, and Asset Management Systems Employing Same |
| 12/08/2011 | US20110298590 Apparatus comprising display driving integrated circuit and radio-frequency identification reader |
| 12/08/2011 | US20110298589 Identification of devices on touch-sensitive surface |