Product
Patsnap Eureka
For R&D, Patsnap Eureka makes reading and utilizing patents & technical documents easy.
Patsnap Eureka AIR
Designed for self-driven R&D workflows. Generate viable solutions, solve complex R&D challenges, empower your innovation with AI.
Patsnap Eureka Materials
Designed for material experts only. Revolutionize your material R&D, from search, analyze, to developing new materials.
Feature
TechResearch
Generate reliable direction feasibility study reports for your R&D in just a few steps.
TechSeek
Discover and master advanced knowledge NOW. Basics, ideas, possibilities, all at once.
TechMind
As an expert in R&D Theories, TechMind can generates customized viable solutions instantly.
TechRisk
Analyze your overall solution with one click, know your potential R&D risks in advance.
TechMonitor
Get weekly tech updates, stay abreast of the latest tech innovations and key insights.
Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
294 results about "Wideband communication systems" patented technology
Efficacy Topic
Property
Owner
Technical Advancement
Application Domain
Technology Topic
Technology Field Word
Patent Country/Region
Patent Type
Patent Status
Application Year
Inventor
Technique for effectively accessing programming listing information in an entertainment delivery system
ActiveUS7174126B2Facilitates user accessEasy accessTelevision system detailsPulse modulation television signal transmissionThe InternetBroadcast time
In a broadband communications system, e.g., a cable system, programming content can be readily reserved and accessed for viewing using an interactive program guide, a network home graphic user interface (GUI), Quick View Guide, etc., in accordance with the invention. Such programming content may include in-progress programs, future programs and previously broadcast programs which are recorded at a headend in the cable system, and which may or may not have overlapping broadcast times. In addition, the user may reserve programs at a set-top terminal, and may also do so remotely from the terminal through a communications network such as, the Internet, a public switched telephone network (PSTN), a wireless telephone network, etc.
Owner:TIME WARNER CABLE ENTERPRISES LLC
Apparatus and methods for incorporating bandwidth forecasting and dynamic bandwidth allocation into a broadband communication system
InactiveUS20060120282A1Energy efficient ICTError preventionDynamic bandwidth allocationComputer network
A method for providing network access to a shared access communications medium for a plurality of users includes the steps of conducting predictive admission control by arbitrating user requests for access to the shared medium based on predicted aggregate demands, conducting lookahead scheduling for use in making user channel assignments by forecasting schedule transmission opportunities one or more channels of the shared medium, and balancing load by making channel assignments such that a plurality users are each assigned a respective channel of the shared medium based upon a predicted need. Congestion parameters can predicted for each channel of the shared medium and mapped to a congestion measure using a mathematical function that takes into account packet loss rate, packet delay, packet delay jitter, and available capacity.
Owner:CISCO TECH INC
Method and System for Soft Handoff in Mobile Broadband Systems
ActiveUS20080076432A1Increase coverageWireless network protocolsRadio/inductive link selection arrangementsCommunications systemBroadband
The present invention provides a method and system for facilitating efficient handoff and data throughput in mobile broadband communication systems. Methods implemented by a system constructed in accordance with the principles of the present invention include selectively enabled soft handoff, performing Layer 2 bearer functions at the base station and using the mobile device to coordinate soft handoff and interference avoidance without the need for a centralized coordination function.
Owner:APPLE INC
Activity log for improved call efficiency
InactiveUS6917610B1Improve calling efficiencyTelephonic communicationData switching by path configurationCommunications systemDependability
The present invention provides for an activity log which may include user proactive billing management for use in a broadband communications system that guarantees voice, data and video communication reliability and security to users for an integrated telephone, television and data network. The activity log and user proactive billing management may log incoming calls directory numbers (DNs) and outgoing call DNs in a database that may be provided at a central system location, such as the IP Central Station or at the system subscriber's customer premises equipment. The activity log may also log incoming and outgoing email interactive sessions (e.g., instant message (IM) email) and log multimedia video and audio calls. According to a variation of the invention, the user may access the activity log(s) and identify any communication the cost of which should be billed to a different party. The activity log may also be sorted based on user preferences and set to direct calls to low cost alternatives.
Owner:AMERICAN TELEPHONE & TELEGRAPH CO
Personal control of address assignment and greeting options for multiple BRG ports
InactiveUS7180889B1Enhanced greetingEnhanced message featureInterconnection arrangementsAutomatic exchangesDirectory numberUser interface
A method and apparatus for providing multiple telephone lines using a single directory number. A method and apparatus for associating multiple directory numbers with multiple telephone lines. A broadband residential gateway (BRG) is a user interface to a broadband communication system providing packetized telephone service and other media services. The BRG has multiple ports, and each port is connected to one or more telephones. The multiple ports may be mapped to a single directory number, or the multiple ports may be mapped to multiple directory numbers. The BRG can provide greeting and message features. A greeting may instruct a caller to select a port which is associated with a party the caller is attempting to reach. Also, a message, played after the greeting, may further instruct the caller.
Owner:SHORETEL
Method and apparatus for detecting interference using correlation
ActiveUS7525942B2Error preventionFrequency-division multiplex detailsCommunications systemInterference (communication)
Owner:ILLINOIS SUPERCONDUCTOR CORP
Method and apparatus for detecting interference using correlation
A system and / or a method for detecting interference using correlation may be used in a communication system to protect against, or to report the presence of, narrowband interference, which has deleterious effects on the performance of the wideband communication system. The interference detection system described herein may be used to determine presence of narrowband interference by calculating correlation factors for a plurality of narrowband channels disposed within the wideband communication system and comparing the correlation factors with a threshold correlation factor.
Owner:ILLINOIS SUPERCONDUCTOR CORP
Globally accessible computer network-based broadband communication system with user-controllable quality of information delivery and flow priority
InactiveUS20020004827A1Digital computer detailsData switching networksReference modelTraffic capacity
A method for providing broadband communications over a multi-layered network having a plurality of Open System Interconnection (OSI) Reference Model layers functioning therein includes monitoring at least one OSI reference model layer functioning in the multi-layered network. A quality of service event is determined whether to have occurred in the multi-layered network. The quality of service event is determined to have occurred at a layer N in the OSI reference model. Network provisioning is changed at a layer less than N in response to the quality of service event, and a signal is provided when the network provisioning at the layer less than N has been changed. A system for providing broadband communications includes a multi-layered network, a network monitor, and a network controller. The multi-layered network has a plurality of Open System Interconnection (OSI) reference model layers functioning therein. The network monitor is coupled to the multi-layered network, and the network monitor is adapted to monitor at least one OSI reference model layer functioning in the multi-layered network, determine that a quality of service event has occurred in the multi-layer network, and determine that the quality of service event occurred at a layer N in the OSI reference model. The network controller is coupled to the multi-layered network, and the network monitor is adapted to respond to the quality of service event in the multi-layered network by changing the network provisioning at a layer less than N.
Owner:UNWIRED BROADBAND INC
Program guide and reservation system for network based digital information and entertainment storage and delivery system
ActiveUS7073189B2EffectiveEasy accessTelevision system detailsPulse modulation television signal transmissionCommunications systemThe Internet
In a broadband communications system, e.g., a cable system, programming content can be readily reserved and accessed for viewing using interactive program guides in accordance with the invention. Such programming content may include in-progress programs, future programs and previously broadcast programs which are recorded at a headend in the cable system, and which may or may not have overlapping broadcast times. In addition, the user may reserve programs at a set-top terminal, and may also do so remotely from the terminal through a communications network such as, the Internet, a public switched telephone network (PSTN), a wireless telephone network, etc.
Owner:TIME WARNER CABLE ENTERPRISES LLC
Apparatus for encryption key management
ActiveUS7200868B2Key distribution for secure communicationDigital data processing detailsBroadband communicationKey management
Owner:CISCO TECH INC
Digital Hybrid Mode Power Amplifier System
InactiveUS20080265996A1High performance and cost-effectiveImprove linearityAmplifier modifications to reduce non-linear distortionHigh frequency amplifiersPeak valueMulti carrier
A RF-digital hybrid mode power amplifier system for achieving high efficiency and high linearity in wideband communication systems is disclosed. The present invention is based on the method of adaptive digital predistortion to linearize a power amplifier in the RF domain. The power amplifier characteristics such as variation of linearity and asymmetric distortion of the amplifier output signal are monitored by the narrowband feedback path and controlled by the adaptation algorithm in a digital module. Therefore, the present invention could compensate the nonlinearities as well as memory effects of the power amplifier systems and also improve performances, in terms of power added efficiency, adjacent channel leakage ratio and peak-to-average power ratio. The present disclosure enables a power amplifier system to be field reconfigurable and support multi-modulation schemes (modulation agnostic), multi-carriers and multi-channels. As a result, the digital hybrid mode power amplifier system is particularly suitable for wireless transmission systems, such as base-stations, repeaters, and indoor signal coverage systems, where baseband I-Q signal information is not readily available.
Owner:DALI SYST LTD
High efficiency, remotely reconfigurable remote radio head unit system and method for wireless communications
ActiveUS20120155572A1High performance and cost-effectiveImprove linearityEnergy efficient ICTPower amplifiersUnit systemEngineering
A remote radio head unit (RRU) system for achieving high efficiency and high linearity in wideband communication systems is disclosed. The present invention is based on the method of adaptive digital predistortion to linearize a power amplifier inside the RRU. The power amplifier characteristics such as variation of linearity and asymmetric distortion of the amplifier output signal are monitored by a wideband feedback path and controlled by the adaptation algorithm in a digital module. Therefore, embodiments of the present invention can compensate for the nonlinearities as well as memory effects of the power amplifier systems and also improve performance, in terms of power added efficiency, adjacent channel leakage ratio and peak-to-average power ratio. The present disclosure enables a power amplifier system to be field reconfigurable and support multi-modulation schemes (modulation agnostic), multi-carriers, multi-frequency bands and multi-channels. As a result, the remote radio head system is particularly suitable for wireless transmission systems, such as base-stations, repeaters, and indoor signal coverage systems.
Owner:DALI SYST LTD
Method and System for Baseband Predistortion Linearization in Multi-Channel Wideband Communication Systems
ActiveUS20080152037A1Reducing computational complexity and numerical instabilityMultiple-port networksElectric signal transmission systemsAdjacent channel power ratioFrequency spectrum
An efficient baseband predistortion linearization method for reducing the spectral regrowth and compensating memory effects in wideband communication systems using effective multiplexing modulation technique such as wideband code division multiple access and orthogonal frequency division multiplexing is disclosed. The present invention is based on the method of piecewise pre-equalized lookup table based predistortion, which is a cascade of a lookup table predistortion and piecewise pre-equalizers, to reduce the computational complexity and numerical instability for desired linearity performance with memory effects compensation for wideband transmitter systems. Therefore, the present invention could reduce the computational load, which saves hardware resources in an implementation and improve performance, in terms of adjacent channel power ratio.
Owner:DALI WIRELESS
Digital video recorder for recording missed program episodes and for resolving scheduling conflicts between programs to be recorded
InactiveUS20060136966A1Television system detailsAnalogue secracy/subscription systemsDigital videoCommunications system
A method and apparatus is provided for recording at least one program received over a broadband communications system. The method begins by accessing a database that includes program information that describes with program attributes a plurality of programs available over the broadband communications system. User-defined criteria are received that identify preferred program attributes. The database is sorted through to identify at least one preferred program having program attributes that include the preferred program attributes. From information in the database a first scheduled time at which the preferred program is to be received is identified. The first scheduled time is compared to another scheduled time of another program to be recorded. If the first scheduled time and the other scheduled time overlap in whole or in part, thereby giving rise to a scheduling conflict, the method continues by sorting through the database to identify a second scheduled time at which either the preferred program or the other program is available. Recording is then scheduled at the second scheduled time of either the preferred program or the other program that is available at the second scheduled time. Recording is next scheduled of a remaining one of the preferred program or the other program at the first scheduled time or the other scheduled time, respectively.
Owner:GENERAL INSTR CORP
Broadband communication systems and methods using low and high bandwidth request and broadcast links
InactiveUS6879808B1Large capacityIncrease the number ofBroadcast transmission systemsRadio/inductive link selection arrangementsSatellite radioTransport system
Broadband data transmission systems and methods that provide point-to-multipoint broadcasting capability to implement Internet access and multimedia distribution services for a very large number of users. An exemplary system comprises a two-way communication link having at least one satellite, at least one user terminal that has two-way communication with the two-way communication link, and at least one gateway that has access to data and has two-way communication with the two-way communication link. The two-way communication link may comprise a low bandwidth two-way communication link, or a low bandwidth request link and high bandwidth data broadcast link. The high bandwidth link preferably broadcasts a wide area coverage beam to allows the requested information to be received by many terminals. The terminal and gateway may each include a cache. Software at the gateway operates to deliver requested data and related data to users using the user's request history and / or user profile. The requested (and related) data (such as a predetermined number of most-requested web pages) may be broadcast at predetermined intervals to simulate real-time broadcasts. Another exemplary system comprises a terrestrial communication link for communicating data requests, a satellite broadcast link for transmitting the requested data, at least one gateway having access to data that communicates with the terrestrial communication link and the satellite broadcast link, and at least one user terminal that communicates with the terrestrial communication link and the satellite broadcast link that caches the requested (and related) data transmitted by the satellite broadcast link. Broadband data transmission methods are also disclosed.
Owner:SPACE SYST LORAL INC
System and method for internet page acceleration including multicast transmissions
InactiveUS6947440B2Reducing latency experiencedLow experience requirementSpecial service provision for substationNetwork topologiesDistributed cacheThe Internet
A broadband communication system with improved latency is disclosed. The system employs distributed caching techniques to assemble data objects at locations proximate to a source to avoid latency over delayed links. The assembled data objects are then multicast to one or more remote terminals in response to a request for the objects, thus reducing unnecessary data flow across the satellite link.
Owner:GILAT SATELLITE NETWORKS
Multi-band wideband power amplifier digital predistorition system and method
ActiveUS20120154038A1High performance and cost-effectiveImprove linearityResonant long antennasModulated-carrier systemsMulti bandBroadband power amplifier
A high performance and cost effective method of RF-digital hybrid mode power amplifier systems with high linearity and high efficiency for multi-frequency band wideband communication system applications is disclosed. The present disclosure enables a power amplifier system to be field reconfigurable and support multiple operating frequency bands on the same PA system over a very wide bandwidth. In addition, the present invention supports multi-modulation schemes (modulation agnostic), multi-carriers and multi-channels.
Owner:DALI SYST LTD
Multi-stage optical amplifier and broadband communication system
InactiveUS6885498B2Laser using scattering effectsOptical transmission with multiple stagesFiberAudio power amplifier
A multi-stage optical amplifier includes at least a distributed Raman amplifier fiber and a discrete amplifier fiber. The amplifier is configured to be coupled to at least one signal source that produces a plurality of signal wavelengths λs; and at least a first pump source that produces one or more pump beam wavelengths λp. A signal input port is coupled to the amplifier. A signal output port is coupled to the amplifier. The distributed Raman and discrete amplifier fibers are positioned between the signal input port and the signal output port. A first pump input port is coupled to a first end of the distributed Raman amplifier fiber. A second pump input port is coupled to a second end of the distributed Raman amplifier fiber. The first end is located closer to the signal input port than the second end. A third pump input port is coupled to the discrete amplifier fiber.
Owner:NEPTUNE SUBSEA IP LTD
Method and apparatus for providing conditional access to recorded data within a broadband communication system
InactiveUS20050210500A1Analogue secracy/subscription systemsTwo-way working systemsComputer hardwareConditional access systems
A method (300) for providing conditional access to data. A conditional access system (24) is responsive to subscriber devices (14, 20), and the data (52) is stored on a recording medium (50) and encrypted using an encryption key (54) when the recording medium (50) is detachably coupled to a first subscriber device (14). The method includes: based on a request on behalf of a second subscriber device for access to the data, arranging (302) for the conditional access system to authenticate the second subscriber device; and arranging (304) for the conditional access system to transfer the encryption key to the second subscriber device. The encryption key is usable by the second subscriber device to decrypt the data when the recording medium is detachably coupled thereto, and access to the decrypted data by the second subscriber device is restricted in a manner specified by the conditional access system.
Owner:GENERAL INSTR CORP
System and method for storage and retrieval of personal communications in a broadband network
InactiveUS7606706B1Easy searchAutomatic call-answering/message-recording/conversation-recordingSpeech recognitionComputer moduleSpeech identification
A mechanism is provided to build and maintain a searchable database of communication content and related indicia information of all voice and multimedia (audio and video) communications in which a person participates using a broadband communication system. A personal communication module may be coupled to a user's communication device and a broadband communication network for capturing data and performing voice recognition associated with a communication. Data may be stored in a database and searched including, for example, keywords from the communications, date, time, number, etc.
Owner:AMERICAN TELEPHONE & TELEGRAPH CO
Ultra wide band communication systems and methods
InactiveUS20050018762A1Easy to makeLow costEnergy efficient ICTMultiple modulation transmitter/receiver arrangementsTransceiverTime division multiple access
Ultra wide band communication systems and methods are provided. In one embodiment, an ultra wide band communication system includes a first and a second communication device. A lowest common ultra wide band pulse repetition frequency is determined, and data is transmitted between the communication devices using the lowest common ultra wide band pulse repetition frequency. In another embodiment, a first and second slave transceiver communicate with a master transceiver using a time division multiple access frame, with the master transceiver providing transmission synchronization. This Abstract is provided for the sole purpose of complying with the Abstract requirement rules that allow a reader to quickly ascertain the subject matter of the disclosure contained herein. This Abstract is submitted with the explicit understanding that it will not be used to interpret or to limit the scope or the meaning of the claims.
Owner:INTELLECTUAL VENTURES HOLDING 81 LLC
Globally accessible computer network-based broadband communication system with user-controllable quality of information delivery and flow priority
Owner:UNWIRED BROADBAND INC
Narrowband interference rejection for ultra-wideband systems
InactiveUS20100304681A1Reduced signal powerReduce distractionsTransmission noise suppressionUltra wideband communication systemsWide band
A technique for reducing interference between a direct-sequence ultra-wideband communications system and a narrowband communications system uses interference-rejecting spreading codes to reduce signal power in a frequency band associated with the narrowband communications system. A method of operating an ultra-wideband communications system includes applying an interference-rejecting spreading code to a signal for transmission. The interference-rejecting spreading code is configured to reduce power in a particular frequency band of a transmit or receive power spectral density associated with the ultra-wideband signal without substantially reducing power outside that particular frequency band of the transmit or receive power spectral density associated with the ultra-wideband signal.
Owner:AT&T INTPROP I L P
Multi-band wideband power amplifier digital predistorition system and method
ActiveUS8351877B2High performance and cost-effectiveImprove linearityResonant long antennasAmplifier modifications to reduce noise influenceMulti bandBroadband power amplifier
A high performance and cost effective method of RF-digital hybrid mode power amplifier systems with high linearity and high efficiency for multi-frequency band wideband communication system applications is disclosed. The present disclosure enables a power amplifier system to be field reconfigurable and support multiple operating frequency bands on the same PA system over a very wide bandwidth. In addition, the present invention supports multi-modulation schemes (modulation agnostic), multi-carriers and multi-channels.
Owner:DALI SYST LTD
Use of group poll scheduling for broadband communication systems
A group poll mechanism (GPM) that schedules upstream bandwidth for cable modems by pointing a request opportunity normally reserved for a single service flow to more than one service flow. Essentially, instead of using the seldom-used poll requests one per service flow, this same request opportunity is pointed to multiple service flows. In such kind of a scheme the GPM gives the same mini-slot to multiple service flows. The GPM implements the use of place-holder SIDs and novel mapping of information elements in MAP messages.
Owner:JUMIPER NETWORKS INC
Electro optical microwave communications system
A wideband communications system uses a photomixer, a radio frequency (RF) mixer, and an antenna. The photomixer is comprised of high speed phototransistors that are illuminated by two laser beams. The laser beams are generated by two lasers, one tunable, and conveyed to the photomixer via fiber optic cables. The two beams are mixed by the photomixer to generate a radio heterodyne signal that is mixed with antenna signals to generate an intermediate frequency (IF) signal based on the differences of the generated heterodyne frequency and the antenna signals. Conventional fiber optic means may be used to convey the IF signals, along with the fiber optic cables to the photomixer, to and from a remote RF head located at some distance from the rest of the communications system to overcome losses in transmission lines.
Owner:ROCKWELL COLLINS INC
Method For Antenna Calibration In A Wideband Communication System
InactiveUS20120087230A1Less transmission timeReduce calibration timeTransmitters monitoringReceivers monitoringTime domainCommunication unit
The present invention relates to a method for antenna calibration in a communication system having a bandwidth divided into multiple frequency intervals M with multiple communication units 40; 50, each comprising communication circuitry 21, 24: 31, 34; 41, 42; 51, 52, 54 connected to an antenna arrangement 22, 25; 32, 35; 44, 45; 55, 49, communicating with each other over multiple communication channels. The method comprises: establishing a calibration sequence to perform antenna calibration for at least one of said multiple frequency intervals; converting the calibration sequence from the frequency domain to the time domain; transmitting a part of said calibration sequence in the time domain from a first communication circuitry 21; 34; 41; 51, 54 to a second communication circuitry 24; 31; 42; 52, 54 over the multiple communication channels; receiving the part of said calibration sequence in the second communication circuitry 24; 31; 42; 52, 54 for each communication channel; performing antenna calibration based on the received part of the calibration sequence.
Owner:HIGHBRIDGE PRINCIPAL STRATEGIES LLC AS COLLATERAL AGENT
Technique for Effectively Accessing Programming Listing Information in an Entertainment Delivery System
ActiveUS20070130595A1Easy accessTelevision system detailsPulse modulation television signal transmissionGraphicsCommunications system
In a broadband communications system, e.g., a cable system, programming content can be readily reserved and accessed for viewing using an interactive program guide, a network home graphic user interface (GUI), Quick View Guide, etc., in accordance with the invention. Such programming content may include in-progress programs, future programs and previously broadcast programs which are recorded at a headend in the cable system, and which may or may not have overlapping broadcast times. In addition, the user may reserve programs at a set-top terminal, and may also do so remotely from the terminal through a communications network such as, the Internet, a public switched telephone network (PSTN), a wireless telephone network, etc.
Owner:TIME WARNER CABLE ENTERPRISES LLC
Call hold with reminder and information push
InactiveUS7558251B1Reduce the amount requiredLittle and even and bandwidthNetwork connectionsTelephone networkBroadband communication
A broadband communication system including an Internet Protocol Telephony Network and public switched telephone network, including apparatus and methods for placing a call on hold in a way that significantly reduces the amount of network bandwidth utilized by the call while the call is on hold. When a call is placed on hold, embodiments of the architecture of the telephony network of the present invention allows the network to essentially “forget” about the call placed on hold. In other words, a call that is on hold may require very little, or even zero, bandwidth within the telephony network. Accordingly, the total necessary bandwidth capacity of the telephony network may be smaller than it would be if calls on hold were to consume precious network bandwidth as is found in existing telephony systems.
Owner:OPEN INVENTION NEWTORK LLC
High efficiency, remotely reconfigurable remote radio head unit system and method for wireless communications
ActiveUS8542768B2High performance and cost-effectiveImprove linearityEnergy efficient ICTPower amplifiersUnit systemPeak value
Owner:DALI SYST LTD
Who we serve
- R&D Engineer
- R&D Manager
- IP Professional
Why Patsnap Eureka
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com