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| Number | Title | Issue Date |
| 8078214 | Wireless communication system with wireless base station and leaky transmission lines A wireless communication system which includes a wireless base station; a plurality of leaky transmission lines that function as antennas of the wireless base station; and a selector for selecting each of the leaky transmission lines and thereby connecting the leaky... | 12/13/2011 |
| 8078215 | Waveguide-based wireless distribution system and method of operation The design and use of a simplified, highly efficient, waveguide-based wireless distribution system are provided. A low-loss waveguide is used to transport wireless signals from a signal source or sources to one or more receiver locations. One or more adjustable sign... | 12/13/2011 |
| 7840233 | Wireless communication system, wireless communication method and wireless communication apparatus One end of a balanced line is connected to a base station. A transmitting and receiving antenna is connected to the other end of the balanced line. The balanced line not only transmits a signal sent from the base station to the transmitting and receiving antenna and... | 11/23/2010 |
| 7616968 | System and method to facilitate overcoming a degradation in transmission through a radiating transmission line communication system The communication system comprises amplification units coupled to the radiating transmission line at periodic locations for amplifying communication signals radiating and traveling upstream and downstream on the transmission line. During normal operation, mobile com... | 11/10/2009 |
| 7606592 | Waveguide-based wireless distribution system and method of operation The design and use of a simplified, highly efficient, waveguide-based wireless distribution system are provided. A low-loss waveguide is used to transport wireless signals from a signal source or sources to one or more receiver locations. One or more adjustable sign... | 10/20/2009 |
| 7567817 | Method and apparatus for an extruded ceramic biosoluble fiber substrate A porous ceramic substrate is disclosed that is fabricated from biosoluble ceramic fibers. Porosity and permeability of the substrate is provided by intertangled biosoluble fibers, that can be formed into a honeycomb form substrate through an extrusion process. The ... | 07/28/2009 |
| 7499723 | System and method for synchronization between base stations An inter-base station synchronization system is constructed without using any receiver for detecting a frame period error at a zone boundary between leaky coaxial cables, and without using any exclusive line or dedicated radio waves for use in transmitting the frame... | 03/03/2009 |
| 7486962 | Extruded porous substrate having inorganic bonds A method is provided for producing a highly porous substrate. More particularly, the present invention enables fibers, such as organic, inorganic, glass, ceramic, polymer, or metal fibers, to be combined with binders and additives, and extruded, to form a porous sub... | 02/03/2009 |
| 7466990 | Intelligent multiplexers in an antenna line management system A method and apparatus of transmitting a communication signal between a radio base station and a radiation element. In one embodiment, the method includes receiving an input signal. Then extracting a data signal from the input signal, the data signal includes values... | 12/16/2008 |
| 7430437 | Transmitting sensor-acquired data using step-power filtering A method for communicating to a recipient transceiver from a plurality of transceivers located within the broadcast range of the recipient transceiver includes: transmitting a communication at a first power level such that only a first group of transceivers receive ... | 09/30/2008 |
| 7403742 | Multi-band cellular service over CATV network A CATV network is modified with a secondary transmission (CBP) by adding filters to separate modified mobile-communications frequencies. A CATV terminal can be routed to cellular network by way network coupling devices (NCD). ... | 07/22/2008 |
| 7391332 | Radiation information management device and communication device A radiation information management device comprises a measuring unit, a comparing unit, and a management information generating unit. The measuring unit measures unwanted radio wave radiation radiated from a balanced transmission line. The comparing unit compares a ... | 06/24/2008 |
| 7332676 | Discontinued cable shield system and method Implementations of a discontinuous cable shield system and method include a shield having a multitude of separated shield segments dispersed along a length of a cable. The separated shield segments can serve as an incomplete, patch-worked, discontinuous, ‘granulat... | 02/19/2008 |
| 7317931 | Transmission rate changes in communications networks A communications network including first and second stations, the first station comprising a transmitter and the second station comprising a receiver. The network further including a transition control portion which is operable, prior to a change in a transmission r... | 01/08/2008 |
| 7280824 | Wireless communication system A wireless communication system according to the invention is to perform communication with a terminal station at a radio frequency higher than a millimeter wave band. The wireless communication system includes, as transmission devices to the terminal station, a cen... | 10/09/2007 |
| 7257094 | Jointly controlling transmission rate and power in a communications system The present invention jointly controls rate and power in a fashion that enables control of the two variables in one dimension. In some embodiments, this is done by ordering the possible transmit rate (320) and transmit power (340) combinations in a log... | 08/14/2007 |
| 7231224 | Cable having embedded access points A cable has miniaturized, low-cost, highly-integrated wireless network access points embedded in the cable at periodic intervals along the length of the cable. Power conductors that run the length of the cable supply each of the access points with electrical power. ... | 06/12/2007 |
| 7224170 | Fault monitoring in a distributed antenna system A method and system for detecting whether an antenna is property connected to a distributed antenna network. The current drawn by the antenna is measured and compared against an expected current draw or reference level. The measured level of current drawn by the ant... | 05/29/2007 |
| 7224944 | RF transceiver having a directly radiating transistor Transistor package leads form quarter-wave antenna elements that directly radiate RF energy into free space without the need for a separate antenna. The transistor operates at a fundamental frequency and radiates a harmonic, thereby allowing radiation at frequencies... | 05/29/2007 |
| 7202759 | Wideband temperature-variable attenuator An absorptive temperature-variable microwave attenuator is produced using a first plurality of shunt resistors separated by quarter-wave transmission lines connected by a series resistor with a second plurality of shunt resistors separated by quarter-wave transmissi... | 04/10/2007 |
| 7177639 | Dual site supervision for a control channel cellular radio used in a fire alarm reporting system Dual site supervision is provided for a control channel cellular radio for a fire alarm reporting system that uses logic that causes a control channel cellular transceiver to operate in a nonstandard manner and to use a different and second cellular base station or ... | 02/13/2007 |
| 7162264 | Tunable parasitic resonators A mobile terminal can include a printed circuit board with a reference voltage conductor, an antenna coupled to the first side of the printed circuit board, and a parasitic resonator coupled to the second side of the printed circuit board. More particularly, the par... | 01/09/2007 |
| 7149497 | Radio signal receiving device The radio signal receiving device that has an input terminal for inputting an input signal and an output terminal for amplifying the signal inputted to the input terminal and then outputting the signal, comprises an insulating container comprising the input terminal... | 12/12/2006 |
| 7146326 | System and method for outside plant construction pit scheduling tool and log A method for managing three groups, the method comprising the steps of: providing a first group with access to a web application, to place a first command into the web application; providing a second group with access to the web application, to receive the first com... | 12/05/2006 |
| 7138884 | Circuit package integrating passive radio frequency structure In general, the invention is directed to integration of passive radio frequency (RF) structures with at least one integrated circuit in a single integrated circuit (IC) package. An IC package in accordance with the invention may include, for example, a radio IC, a d... | 11/21/2006 |
| 7127273 | Reduction scheme for network elements The invention relates to a radio communications system including a base station, a digital exchange, and a transmission system connecting the base station, and the digital exchange. The base station includes an antenna section, an RF receiver section for receiving a... | 10/24/2006 |
| 7123939 | Communication station with automatic cable loss compensation A wireless communications systems employing code-division multiple access information transmission techniques includes a transmission facility having ground-based transmission and reception electronic equipment, a remotely located RF power amplifier, an antenna, and... | 10/17/2006 |
| 7119632 | High-frequency temperature-variable attenuator An absorptive temperature-variable microwave attenuator is produced using at least two temperature-variable (or fixed) resistors in series with a transmission line. The temperature coefficients of the temperature-variable resistors are selected so that the attenuato... | 10/10/2006 |
| 7099621 | Electromagnetic field communications system for wireless networks An Electromagnetic Field Communications System for Wireless Networks for producing an electromagnetic field within a structure is disclosed. The electromagnetic field is produced by using common conductive elements already present within virtually all pre-existing r... | 08/29/2006 |
| 7091919 | Apparatus and method to increase apparent resonant slot length in a slotted coaxial antenna An oblique angle defining the slot face opposing a coupler in a slotted coaxial antenna increases the apparent slot length and therewith the capacitance of the driven element. The altered slot angle, in concert with a flattened facing surface on the associated coupl... | 08/15/2006 |
| 7058422 | Method for overusing frequencies to permit simultaneous transmission of signals from two or more users on the same frequency and time slot A system is provided for increasing the number of users capable of communicating over a wireless network to permit multiple users to transmit information simultaneously on the same channel or frequency in which a Viterbi decoder-based signal separation system is use... | 06/06/2006 |
| 7024157 | Local area network computer system utilizing radiating transmission line A radio frequency communication system utilizing a radiating transmission line for communicating data signals is disclosed. The data signals convey digital data to remotely located data devices, including computers, equipment control systems and digital video camera... | 04/04/2006 |
| 7006012 | Automatic train stop system In an automatic train stop system in which a track circuit 3 is divided into track circuit sections 1T, 2T and 3T, and a digitized train control information telegram (ATS telegram) 8 is transmitted through the track circuit section... | 02/28/2006 |
| 6997418 | Methods and apparatus for testing a train control system A method is described for testing a train control system configured to control at least two locomotives. The train control system includes a control unit on each locomotive and is configured to control the locomotives using communication links between the control un... | 02/14/2006 |
| 6985119 | Multiple feed point slot antenna A wireless communication device and method for identifying a container, or communication information about a container using a slot in the container as an antenna. The device includes a wireless communication device for transmitting information regarding the contain... | 01/10/2006 |
| 6971896 | Flex strips for high frequency connectors A high frequency connector utilizes flex strip signal/reference conductor pairs extending in channels formed in a dielectric connector body between terminations at connector ends. The flex strips are formed as signal and reference conductor traces separated by a fle... | 12/06/2005 |
| 6947405 | Cellular system with cybercells A local site communication system, including a broadband connection between the local site and an internet, a wireless local site network in the local site and communicating data between the broadband connection and the mobile terminal when the mobile terminal is lo... | 09/20/2005 |
| 6917785 | Electromagnetic field communications system for wireless networks An Electromagnetic Field Communications System for Wireless Networks for producing an electromagnetic field within a structure is disclosed. The electromagnetic field is produced by using common conductive elements already present within virtually all pre-existing r... | 07/12/2005 |
| 6839544 | System and method for remote monitoring of a transmitter in a wireless base station There is disclosed a signal monitoring apparatus for use in a wireless network base station containing a modular main unit for processing baseband signals and a modular radio unit separate from the main unit for transmitting and receiving radio frequency (RF) signal... | 01/04/2005 |
| 6807402 | Device for generating RF signals at multiple frequencies A device for generating a radio frequency electrical signals, delivering at least two separate signals having different frequencies, in the form of signals delivered by different primary sources and amplified with a predetermined gain. The device comprises a combini... | 10/19/2004 |
