Patent application number | Description | Published |
20100135276 | CLOCK PRIORITY CHAIN LEVEL SYSTEMS AND METHODS - Clock Priority Chain Level Systems and Methods are provided. In one embodiment, a method for determining clock priority for a multihost unit distributed antenna system is provided. The method comprises identifying which port of a plurality of ports is receiving a reference clock signal having a highest priority Network Chain Level (NCL) value, wherein the highest priority NCL value indicates a master clock priority level (MCPL) of a host unit providing a Master Clock and a chain level value indicating a chain depth; selecting a system clock reference port from the plurality of ports based on the highest priority NCL value; locking a local clock to a reference clock signal received on the selected system clock reference port; calculating an incremented NCL value based on the highest priority NCL value; and transmitting the incremented NCL value over the plurality of ports. | 06-03-2010 |
20130162835 | THERMAL IMAGING CAMERA FOR INFRARED REPHOTOGRAPHY - Thermal imaging cameras for use in retaking images and methods of retaking images with thermal imaging cameras that include a position sensor that helps guide the camera back to the position where the original image was captured. The position sensor provides position data that may include location data, heading data, and orientation data. | 06-27-2013 |
20140146797 | TIMESLOT MAPPING AND/OR AGGREGATION ELEMENT FOR DIGITAL RADIO FREQUENCY TRANSPORT ARCHITECTURE - A serial link interface unit includes serialized data stream interfaces configured to receive a serialized data stream having a data rate and set of timeslots; an aggregate serialized data stream interface configured to communicate an aggregate serialized data stream having aggregate data rate and plurality of aggregate timeslot sets each coming sequentially in time, wherein a second aggregate timeslot set comes after a first aggregate timeslot set; and wherein the serial link interface unit interleaves data from the different serialized data streams received at the plurality of first interfaces by mapping data from a first timeslot from each different serialized data stream to the first aggregate timeslot set in the aggregate serialized data stream and mapping data from a second timeslot from each different serialized data stream to the second aggregate timeslot set in the aggregate serialized data stream. | 05-29-2014 |
20140146905 | FLEXIBLE, RECONFIGURABLE MULTIPOINT-TO-MULTIPOINT DIGITAL RADIO FREQUENCY TRANSPORT ARCHITECTURE - A distributed antenna system includes network interfaces configured to receive signals from devices external to distributed antenna system and to convert signals to downlink serialized data streams; distributed antenna switch communicatively coupled to network interfaces by digital communication links, distributed antenna switch configured to receive downlink serialized data stream from network interfaces across corresponding digital communication link; distributed antenna switch further configured to aggregate downlink serialized data streams into aggregate downlink serialized data stream; remote antenna unit communicatively coupled to distributed antenna switch by digital communication link that receives aggregate downlink serialized data stream across digital communication link, remote antenna unit further configured to extract downlink serialized data streams from aggregate downlink serialized data stream; remote antenna unit having radio frequency converter configured to convert downlink serialized data stream into radio frequency band and radio frequency transceiver/antenna pair configured to transmit signals in radio frequency band to subscriber unit. | 05-29-2014 |
20140146906 | FORWARD-PATH DIGITAL SUMMATION IN DIGITAL RADIO FREQUENCY TRANSPORT - A distributed antenna switch includes a plurality of first interfaces, each of the plurality of first interfaces configured to receive a downlink serialized data stream from a different network interface across a different first digital communication link; at least one second interface, the at least one second interface configured to communicate an aggregate downlink serialized data stream to a remote antenna unit over a second digital communication link; and wherein the distributed antenna switch is configured to aggregate the plurality of downlink serialized data streams from the different network interfaces into the aggregate downlink serialized data stream. | 05-29-2014 |
20140241224 | UNIVERSAL REMOTE RADIO HEAD - A distributed base station radio system includes first channelized to broadband conversion unit that receives first downlink channelized data for first radio frequency band from first channelized radio frequency source; and first universal remote radio head communicatively coupled to first channelized to broadband conversion unit. First channelized to broadband conversion unit converts first downlink channelized data into a first downlink broadband signal. First channelized to broadband conversion unit communicates the first downlink broadband signal to first universal remote radio head. First universal remote radio head receives first downlink broadband signal. First universal remote radio head frequency converts the first downlink broadband signal into first downlink radio frequency signals in first radio frequency band. First universal remote radio head is further configured to transmit first downlink radio frequency signals in first radio frequency band to first subscriber unit. | 08-28-2014 |
20140243033 | MASTER REFERENCE FOR BASE STATION NETWORK INTERFACE SOURCED FROM DISTRIBUTED ANTENNA SYSTEM - A distributed antenna system (DAS) includes: first base station network interface unit that receives first downlink signals from first external device and converts them into first downlink data stream; second base station network interface unit that receives second downlink signals from second external device and them into second downlink data stream; first remote antenna unit communicatively coupled to first base station network interface unit that receives at least one of first downlink data stream and first downlink signal derived from first downlink data stream. First remote antenna unit has first radio frequency converter configured to convert at least one of first downlink data stream and first downlink signal derived from first downlink data stream into first radio frequency band signal and first radio frequency antenna that transmits first radio frequency band signal to first subscriber unit. DAS is configured to transmit a master reference clock to the first external device. | 08-28-2014 |
20150271793 | DIGITAL DISTRIBUTED ANTENNA SYSTEMS AND METHODS FOR ADVANCED CELLULAR COMMUNICATION PROTOCOLS - Digital distributed antenna systems and methods for advanced cellular communication protocols are provided. In one embodiment, a digital distributed antenna system comprises: a host unit; a plurality of communication links; a plurality of remote antenna units each coupled to the host unit by one of the plurality of communication links, wherein the communication links transport a downlink digitized RF signal from the host unit to the plurality of remote antenna units, and wherein the remote antenna units are each configured to generate an over-the-air analog RF signal via an antenna from the downlink digitized RF signal; and a localized signal conditioning and control module that extracts from a first digitized RF signal at least one data stream and converts the at least one data stream to baseband data stored in a memory. | 09-24-2015 |