| Patent Number |
Title Of Patent |
Date Issued |
| 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 |
| 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 |
| 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 |
| 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 |
| 6263014 |
Method and apparatus for correlation detection of multi-level signals with non-standard deviatio |
July 17, 2001 |
| A method (200) of decoding a multi-level synchronous protocol having a first portion encoded as M/2-level signals and a subsequent portion encoded as M/2-level signal or M-level signals, wherein the M/2-level signals have expected larger than normal variation of deviations includes s |
| 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 |
| 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 |
| 5749056 |
Audio ramping technique for a radio |
May 5, 1998 |
| An audio ramping technique (200) reduces acoustic shock in radio (100) that has multiple operating modes each having a different nominal audio speaker level. The ramping technique (200) sets the audio speaker level to the same initial sound pressure level (SPL) (208) regardless of the mo |
| 5687189 |
Method of noise reduction for an ADPCM signal |
November 11, 1997 |
| Noise in an ADPCM signal is muted or suppressed by modifying the magnitude of the ADPCM information during noisy conditions. In one method, the ADPCM data is changed to a predetermined magnitude value. In another method, the magnitude is reduced by a predetermined amount. |
| 5499397 |
Switched antenna diversity algorithm employing received signal strength, phase errors and recove |
March 12, 1996 |
| The present invention comprises a method and apparatus for selecting one of at least two antennas (202, 204) in a communication unit (200) for use in a wireless communication system (100). A signal is received by a radio frequency receiver during a receiving period from one of the at lea |
| 5491739 |
Methods of establishing a two-way call in a radio communication system |
February 13, 1996 |
| A method for providing two-way calling between first and second handsets (402, 404) using a base station (406) and a paging terminal (412). The method for making the call includes storing a base line phone number for each line within the base station (406). A communication link is es |
| 5463351 |
Nested digital phase lock loop |
October 31, 1995 |
| A nested digital phase lock loop (DPLL) circuit (400) provides center bit sampling for incoming recovered data (406). Included in the nested DPLL circuit (400) are a narrow bandwidth DPLL (402) and a wide bandwidth DPLL (404) which generate first (410) and second (428) recovered clock si |
| 5430769 |
Method and apparatus for controlling switched antenna diversity systems |
July 4, 1995 |
| The present invention comprises a method and apparatus for selecting one of at least two antennas (202, 204) in a communication unit (200) for use in a wireless communication system (100). A signal is received by a radio frequency receiver during a receiving period from one of the at lea |
| 5428821 |
Base site with remote calibration capability |
June 27, 1995 |
| A base site (200) capable of being remotely calibrated includes a receiver (206) and transmitter (210). The base site (200) further includes a controller (208) for controlling the base site and for measuring a transmission parameter related to the received transmission message from h |
| 5335360 |
Base site selection apparatus and method |
August 2, 1994 |
| A base site circuit (38) for operating in a communication system (10) having a plurality of base sites capable of allocating a communication channel for use by a communication unit (16) in response to a communication channel request from the communication unit. The base site circuit |
| 5329635 |
Seamless handoff for radio telephone systems |
July 12, 1994 |
| A method for seamless transfer of a communication link from a first radio telephone base station to a second radio telephone base station comprises the following steps performed at the first base station: (100) receiving a communication link request from a calling portable radio unit; (1 |
| 5280541 |
Cordless telephone communication system link re-establishment protocol |
January 18, 1994 |
| A method for re-establishing a communication link that has been lost between a portable unit (406) and a fixed unit or base station (402) provides for a way of quickly re-establishing the lost communication link, on the previously used RF channel. The method is begun by transmitting a |
| 5218630 |
Method for channel utilization in extended spectrum communication systems |
June 8, 1993 |
| A base station allocates radio channels to radio telephone handsets in a second generation cordless telephone (CT2) communication systems by scanning each channel in a first band, and scanning each channel in a second band to measure an RSS level for each channel scanned. The base st |
| 5203012 |
Method and apparatus for optimum channel assignment |
April 13, 1993 |
| A method and apparatus for choosing the most optimum communication channel in a system (100) having a plurality of communication channels provides for reduced interference and increased system capacity. By establishing a set of threshold levels and comparing these threshold levels to rec |
