| Patent Number |
Title Of Patent |
Date Issued |
| 7593450 |
Dynamic frequency hopping |
September 22, 2009 |
| A frequency hopping communications system is disclosed. A server is adapted to have one or more radio head interface modules and a call processing software module. The call processing software module performs modulation and demodulation of voice and data streams using one or more air |
| 7583735 |
Methods and systems for handling underflow and overflow in a software defined radio |
September 1, 2009 |
| Systems and methods for handling buffer overflows and underflows in a software defined radio are presented. A communications system comprises one or more radio head interface modules and a call processing software module. The radio head interface modules are adapted to communicate with |
| 7574234 |
Dynamic readjustment of power |
August 11, 2009 |
| System and methods for the dynamic readjustment of power are provided. In one embodiment a communications system comprises a base station including one or more radio head interface modules and a signal processing module, the radio head interface modules adapted to communicate with the si |
| 7554946 |
Dynamic reallocation of bandwidth and modulation protocols |
June 30, 2009 |
| Systems for dynamic reallocation of bandwidth and modulation protocols is provided. In one embodiment, a radio head interface module comprises: a transmit buffer adapted to receive a data stream from a signal processing module and store the data stream as a page of data samples having a |
| 7546138 |
Communication system and method with gain control for signals from distributed antennas |
June 9, 2009 |
| An apparatus for gain control in a communication system is disclosed. The apparatus includes means for receiving at least one aggregate communications signal, the at least one aggregate communications signal comprising a summation of distributed communications signals, means for dete |
| 7539509 |
Small signal threshold and proportional gain distributed digital communications |
May 26, 2009 |
| An apparatus for gain distribution in a system comprising a plurality of distributed antennas and a total system dynamic range is disclosed. The apparatus includes means for sensing a signal level at each of the plurality of distributed antennas, means for comparing at least one of t |
| 7474891 |
Dynamic digital up and down converters |
January 6, 2009 |
| The present invention relates to dynamically configured wireless communication systems. In particular, in one embodiment, dynamically configured up and down converters in a communication system is provided. The method comprises receiving a request to change a protocol in a communicat |
| 7424307 |
Loss of page synchronization |
September 9, 2008 |
| Systems and methods for maintaining data stream synchronization are provided. A system comprises one or more radio head interface modules and a call processing software module each adapted to communicate with each other. The call processing software module performs modulation and dem |
| 7423988 |
Dynamic reconfiguration of resources through page headers |
September 9, 2008 |
| Methods and systems for reconfiguring communications systems are provided. A communications system comprises one or more radio head interface modules and a call processing software module. The one or more radio head interface modules are adapted to communicate with the call processing |
| 7398106 |
Dynamic readjustment of power |
July 8, 2008 |
| A dynamically reconfigurable communications system is presented. The communications system comprises a server, including one or more radio head interface modules, a call processing software module, and a radio head unit coupled to the radio head interface module over one or more tran |
| 7171244 |
Communication system and method with gain control for signals from distributed antennas |
January 30, 2007 |
| A distributed antenna system is configured in a daisy-chain fashion along a single path. The summation of the signals received by each antenna port of the system is distributed along the path. The signal gain for the system is controlled by distributed attenuation and distributed gain |
| 7103377 |
Small signal threshold and proportional gain distributed digital communications |
September 5, 2006 |
| A method for signal gain adjustment in a multi-port, digital distributed antenna system uses a sorter to sort received signals in ascending order according to their signal levels. A threshold comparator generates a dynamic range fair threshold that is updated as any remaining system |
| 6920591 |
Measuring an error rate in a communication link |
July 19, 2005 |
| An error rate detector is provided. The error rate detector includes a sequence generator that is adapted to generate a test sequence for comparison with a received sequence. The error rate detector also includes a self synchronization circuit that is responsive to the test sequence |
| 5896560 |
Transmit control system using in-band tone signalling |
April 20, 1999 |
| A transmit control system using in-band tones for activating and deactivating one or more remote sites. The transmit control system detecting energy in two or more spectral regions to determine if the signal received is a harmonic signal or a signalling tone to prevent accidental dea |
| 5815799 |
Priority system for a wide area transmission trunked communication system |
September 29, 1998 |
| A method and apparatus for providing priority access for users in a transmission trunked communication system, including a plurality of distributive radio network terminal (RNT) switches and a unique signaling protocol and a switching protocol especially adapted for communication of |
| 5724515 |
Packet radio communication system |
March 3, 1998 |
| A packet radio communications system having a protocol which provides for nonstandard communications. The protocol providing a standard format indicator to indicate whether a received packet is in a standard or nonstandard format. If the standard format indicator signals a standard p |
| 5613196 |
Method and apparatus for a distributive wide area network for a land mobile transmission trunked |
March 18, 1997 |
| A land mobile transmission trunked communication system is provided with a unique switching protocol arrangement among repeaters that are networked to one or more external communication networks. The land mobile transmission trunked communication system includes a plurality of transc |
| 5548802 |
Method and apparatus for a remote network switch for a land mobile transmission trunked communic |
August 20, 1996 |
| A method and apparatus for distributively interconnecting a plurality of land mobile trunked transmission communication systems into a wide area network includes a plurality of distributive radio network terminal (RNT) switch and a unique signaling protocol and a switching protocol espec |
| 5465386 |
Signaling protocol for a distributive wide area transmission trunked communication system |
November 7, 1995 |
| A land mobile transmission trunked communication system is provided with an enhanced control signal protocol. The land mobile transmission trunked communication system includes a plurality of transceivers for transmitting and receiving transmission trunked radio communications over one o |
| 5440759 |
Modular networking switch system for a distributive wide area transmission trunked communication |
August 8, 1995 |
| A modular networking switch system for a land mobile transmission trunked communication system provides transmission trunked communications with a plurality of transceivers and networks the plurality of transceivers with remote transcievers in one or more external communication networks. |
| 5159701 |
Method and apparatus for a distributive wide area network for a land mobile transmission trunked |
October 27, 1992 |
| A method and apparatus for distributively interconnecting a plurality of land mobile trunked transmission communication systems into a wide area network includes a plurality of distributive radio network terminal (RNT) switch means and a unique signaling protocol and a switching protocol |
| 5040237 |
Method and apparatus for an alternate home channel for a land mobile transmission trunked commun |
August 13, 1991 |
| An alternate home channel for a land mobile transmission trunked communication system designates one of a plurality of repeaters for a given site or coverage zone as an alternate home repeater. The control signals transmitted over the subaudio band for all home channels repeaters in |
