| Patent Number |
Title Of Patent |
Date Issued |
| 7606526 |
Method and apparatus for providing digital media player with portable digital radio broadcast sy |
October 20, 2009 |
| A portable media player for receiving and storing a satellite digital audio radio service (SDARS) content stream is provided. Also provided are associated devices such as an integrated antenna and docking station, an SDARS receiver module for detachable connection to a player, digital |
| 7555020 |
Method and apparatus for employing stored content at receivers to improve efficiency of broadcas |
June 30, 2009 |
| The invention relates generally to a receiver unit in a digital broadcast system for receiving a broadcast signal comprising content segments and control data, and generating an output signal using the content segments and previously stored content segments. The previously stored content |
| 7454166 |
System and method for providing recording and playback of digital media content |
November 18, 2008 |
| A system and method for time-shifting a live broadcast, and facilitating the purchase of live or time-shifted broadcast content. The device records broadcast content being listened to by user, which gives the user the option to replay content. The device and method also provides a pr |
| 7406311 |
Method and apparatus for selectively operating satellites in tundra orbits |
July 29, 2008 |
| A satellite system provides geosynchronous satellites in elliptical orbits in respective elliptical orbital planes separated by 120 degrees. The satellites traverse a common figure-eight ground track comprising northern and southern loops. The satellites are controllably switched to |
| 7251281 |
Method and apparatus for continuous cross-channel interleaving |
July 31, 2007 |
| A method of interleaving data for transmission is provided wherein first and second interleaving patterns for arranging data symbols in a source data stream into first and second transmitted data streams are selected. Each of said data symbols has at least one bit. The first and second |
| 7180917 |
Method and apparatus for employing stored content at receivers to improve efficiency of broadcas |
February 20, 2007 |
| The invention relates generally to a receiver unit in a digital broadcast system for receiving a broadcast signal comprising content segments and control data, and generating an output signal using the content segments and previously stored content segments. The previously stored content |
| 7136640 |
Method and apparatus for selectively operating satellites in tundra orbits |
November 14, 2006 |
| A satellite system provides geosynchronous satellites in tundra orbits in respective elliptical orbital planes separated by 120 degrees. The satellites traverse a common figure-eight ground track comprising northern and southern loops. The satellites are controllably switched to oper |
| 7058086 |
Method and apparatus for concatenated convolutional encoding and interleaving |
June 6, 2006 |
| A method and apparatus encode a source data stream via convolutional encoding. One or more encoded data streams are interleaved and transmitted on one or more transmission channels. Data groups generated via convolutional encoding are interleaved via time-interleaving functions to di |
| 6876835 |
Method and apparatus for providing on-demand access of stored content at a receiver in a digital |
April 5, 2005 |
| A receiver in a digital broadcast system is provided for storing broadcast content files for on-demand playback purposes. The content files are transmitted in a partitioned format. Users can select which content files are to be captured in a memory device following reception. The receive |
| 6834156 |
Method and apparatus for controlling user access and decryption of locally stored content at rec |
December 21, 2004 |
| The invention relates generally to a receiver unit in a digital broadcast system for receiving a broadcast signal comprising content segments and control data, and generating an output signal using the content segments and previously stored content segments at the receiver. The previousl |
| 6686880 |
Method and apparatus for prompting a reverse channel response from receiver in a digital broadca |
February 3, 2004 |
| The invention relates generally to a digital broadcast system and receivers therein which are configured to allow the use of a reverse channel for transmitting responses to broadcast messages. The digital broadcast system is configured to receive requests for information from a mobile pl |
| 6614767 |
Method and apparatus for continuous cross-channel interleaving |
September 2, 2003 |
| A method of interleaving data for transmission is provided wherein first and second interleaving patterns for arranging data symbols in a source data stream into first and second transmitted data streams are selected. Each of said data symbols has at least one bit. The first and second |
| 6564003 |
Method and apparatus for composite data stream storage and playback |
May 13, 2003 |
| A composite data stream is stored on a data storage medium. The composite data stream comprises a plurality of program channels to provide services such as satellite digital audio radio service (SDARS), among others. The program channels are multiplexed into the composite data stream, wh |
| 6442385 |
Method and apparatus for selectively operating satellites in tundra orbits to reduce receiver bu |
August 27, 2002 |
| A time diversity satellite system provides geosynchronous satellites in tundra orbits in three orbital planes. The satellites traverse a common figure-eight ground track comprising northern and southern loops. Power modes and early and late operating modes of the satellites are selective |
| 6347216 |
Method and system for providing geographic specific services in a satellite communications netwo |
February 12, 2002 |
| A method and apparatus for communicating geographic specific services to a receiver in a satellite communications network by utilizing location identification information included in a composite signal transmitted by a terrestrial repeater. A terrestrial repeater receives from a satellit |
| 6229824 |
Method and apparatus for concatenated convolutional endcoding and interleaving |
May 8, 2001 |
| A method and apparatus encode a source data stream via convolutional encoding. Plural encoded data streams are interleaved and transmitted on plural transmission channels. Data groups generated via convolutional encoding are interleaved via time-interleaving functions to disperse sel |
| 6154452 |
Method and apparatus for continuous cross-channel interleaving |
November 28, 2000 |
| A method of interleaving data for transmission is provided wherein first and second interleaving patterns for arranging data symbols in a source data stream into first and second transmitted data streams are selected. Each of said data symbols has at least one bit. The first and second |
| 6014376 |
Method for over-the-air synchronization adjustment in a communication system |
January 11, 2000 |
| A method for synchronizing base stations (104, 106, 108, 110) or radio ports in a communication system (100) such as a cordless or cellular telephone system uses a mobile station (114) or handset for synchronizing unsynchronized base stations. The mobile station (114) is first synchr |
| 6011784 |
Communication system and method using asynchronous and isochronous spectrum for voice and data |
January 4, 2000 |
| In a time division, multiple access system, a base station (102) transmits an isochronous beacon (404, 422) at the start of each frame (400), conveying control and timing information. Following the isochronous beacon (404), isochronous time slots (414, 416, 418, 420) are dynamically |
| 5799256 |
Battery saving method and communication device using prediction of user location, movement and a |
August 25, 1998 |
| A method and apparatus reduces power consumption in a portable communication device (104) by predicting a user's location, movement and actions. The portable communication device (104) is powered by a battery (120) and includes a battery control (122) for decoupling portions of the c |
| 5799039 |
Method and apparatus for error mitigating a received communication signal |
August 25, 1998 |
| A method and apparatus for mitigating error in a received communications signal includes an error mitigator (35) of a communication unit (12) which receives and performs mitigation based on an error indication. In a first embodiment the error indication is a phase or non-used data symbol |
| 5732350 |
Method for mobile station location registration with dynamic cell grouping for radiotelephone sy |
March 24, 1998 |
| A method for registering a mobile station (307) in a radiotelephone communication system (300). The mobile station (307) receives system information from a base station (321), including a cell grouping level. The mobile station (307) determines if it is registered with the base stati |
| 5699389 |
Oversampling correlator with virtual clock phase for a telecommunications device |
December 16, 1997 |
| A correlation circuit (200) for detecting a correct phase for data bits in a received data stream includes a clock generator (204) configured to generate a plurality of clock signals, each clock signal having a predetermined unique clock phase. A plurality of data correlators (210, 2 |
| 5303411 |
Receiver sensitivity threshold extended with the combination of an unmodulated signal with the r |
April 12, 1994 |
| A receiver (10) is provided where an information signal (11) is received (12) and examined to determine (20) its signal strength. When the signal strength is at least equal to a threshold, an unmodulated signal (40) is added to the received signal to improve the sensitivity of the receiv |
| 5184143 |
Low profile antenna |
February 2, 1993 |
| A low profile antenna includes a rectangular driven element and a rectangular ground plate spaced from the driven element. A coaxial transmission has its center conductor connected to an end of the driven element and its ground connection connected to the end of the driven element sp |
| 4849765 |
Low-profile, printed circuit board antenna |
July 18, 1989 |
| A low-profile antenna for operating in the 800 to 900 mHz range and especially suited for use with portable, hand-held electronic apparatus. The antenna features printed circuit board construction for precision fabrication, broadband operations and enhanced efficiency. The antenna in |
| 4803447 |
Three terminal remotely controlled SPDT antenna switch |
February 7, 1989 |
| An antenna switch (302) includes a radio terminal (R) and first and second antenna terminals (A1 and A2). When the second antenna terminal (A2) is unterminated, the radio terminal (R) is coupled to the first antenna terminal (A1). When the second antenna terminal (A2) is connected to a |
| 4628322 |
Low profile antenna on non-conductive substrate |
December 9, 1986 |
| A low profile antenna comprised of a driven element and a parasitic element spaced above a ground plane. The driven element is connected at one end to the feedpoint of the radio device to which it is attached, the opposite end thereof being free. The parasitic element is connected to the |
| 4584585 |
Two element low profile antenna |
April 22, 1986 |
| A low profile antenna comprised of a driven element and a parasitic element spaced above a ground plane. The driven element is connected at one end to the feedpoint of the radio device to which it is attached, the opposite end thereof being free. The parasitic element is connected to the |
