Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 201 - 250 out of 800

Document Document Title
WO/1995/027352A1
A high speed bidirectional cable transmission system for CATV and other television systems includes unidirectional transmission of video signals from a head end unit (10) to a plurality of transceivers or subscribers connected to a trans...  
WO/1995/019079A1
A radio access method for facilitating communication between at least one first station and a plurality of second stations is disclosed. First, each signal intended for transmission is buffered at a first station. The signals are then di...  
WO/1995/009496A1
The invention relates to a method for digital semi-duplex transmission between two radio units. To transmit reverse information, the method comprises the steps of transmitting a selected number (N-1) of speech or data blocks during a tim...  
WO/1995/008247A1
An optical communications system comprises an inner core network, a plurality of outer networks coupled to the core, and local networks coupled to the outer networks whereby to provide access to terminals coupled to the network. Informat...  
WO/1995/004415A1
A communication system includes a plurality of subscribers each of said subscribers having a transceiver including a transmitter (34) and a receiver (35, 36). In the system there are means (31) coupled to each of said transceivers to ena...  
WO/1995/002942A1
The availability and location of a multiplicity of multiplexed digital information streams, transmitted over one of a multiplicity of channels, are identified by transmitting a Global Channel Map which includes a version number, one Band...  
WO/1994/021061A1
An apparatus is provided for use in a multi-channel digital transmitter and receiver. A filtering process is accomplished by conditioning portions of a digitized signal during digital signal processing by integrating, taking the differen...  
WO/1994/011961A1
The invention relates to a method and an arrangement for dynamic allocation of multiple carrier wave channels for multiple access by frequency division multiplexing. The invention provides a number of mobile units with the possibility of...  
WO/1994/010772A1
A method and means are provided of transmultiplexing a plurality of signals between a plurality of signal terminals (17 or 29) and a plurality of selected radio frequency channels. The method includes the step of, and means for, frequenc...  
WO/1993/020628A1
In a wireless frequency and time division multiple access (FD/TDMA) communications system having time-slotted communications channels, there is provided a method of and apparatus for hopping wireless communications. It comprises sequenci...  
WO/1993/003558A1
A communication system having a site (42) employing a plurality of communication channels. Each channel is assigned a desired received signal strength threshold. A channel is assigned to a subscriber unit (43a, 43b) based upon the streng...  
WO/1992/016063A1
System for broadcasting and receiving digital data within time divisional multiplexed channels, grouped in frames, each frame comprising multicarrier symbols, including data symbols and system symbols, each symbol comprising a set of ort...  
WO/1992/008303A1
Data, for example, data over a traffic message channel, is transmitted over a radio data system by multiplexing across several available channels. Data is transmitted at intervals over each channel so that data is transmitted at differen...  
WO/1992/006546A1
An intelligent communications node (20) is capable of dynamically selecting frequency and time slot assignments for communications with remote communication devices (22, 24, 26) having different communication protocols including differen...  
WO/1992/006545A1
A device in which the frequency band (W) of a multiple carrier signal (MCS) is divided into a number K of sub-bands. The data contained in each sub-band are sampled at a predetermined rate (Sr) to generate a spaced sequence of samples. T...  
WO/1990/013956A1
A distributed intelligence network (10) using time and frequency domain multiplexing. On power-up, each node (20) determines its skew and requests downloading of program code and configuration data. A node claims timeslots by transmittin...  
WO/1990/008434A1
A communication system (Figure 2) that provides TDM and FDM communications between communication units (104). At least two control slots (403) are provided in each TDM frame window (Figure 4) to provide communication control information ...  
WO/1990/005417A1
Method for converting electronic signals from frequency-division multiplex (FDM format) into time-division multiplex (TDM format) while retaining substantially all signal information (amplitude and phase information) of a band-limited si...  
WO/1989/005071A1
Apparatus for converting a frequency division multiplex (fdm) signal to a time domain multiplex (tdm) signal in which a voltage controlled oscillator (21) whose output is a staircase of reference frequencies mixed by a mixer (20) with a ...  
WO/1981/003095A1
Digital Subscriber Communication System for transmitting voice or data information. Existing digital systems are primarily used to carry a large number of multiplexed voice transmission from one point to another. The purpose of this inve...  
WO/1979/000271A1
A FDM/TDM transmultiplexer uses sampling rate multiplication to increase the sampling rate for time division multiplexed (TDM) to frequency division multiplexed (FDM) conversion and decrease the sampling rate for FDM to TDM conversion. T...  
JP6573963B2  
JP2019520770A
An embodiment of this indication provides a method and a device of signal processing in a fiber-optic-communications system. This method divides into a plurality of groups an electric signal for a plurality of receivers which can be set ...  
JP2018207402A
To provide a base station, a terminal, a radio communication system and a communication method, which can improve transmission efficiency with the suppression of a transmission quality deterioration.The base station, which performs radio...  
JP6440720B2  
JP6437904B2  
JP6421234B2  
JP6411519B2  
JP6334766B2  
JP2018074464A
To prevent reduction of communication quality by preventing interference of communication between mutually proximate metal lines of multiple communication systems of which the available frequency bands are partially overlapped, in accord...  
JP6267723B2  
JP2017220898A
To provide a technology for performing more efficient communication.A slave station device which performs communication with a master station device comprises: input means for inputting data to be transmitted to the master station device...  
JP2017530576A
This indication is related with one or more techniques for making possible the component career for multicareer wireless communication. The capability of UE which supports six or more down-link component careers, or a base station may be...  
JP2017521894A
The mode of this indication realizes pairing of the career between zones, and a time sharing double Trust (TDD) career. When the zone made into the pair is a frequency division double Trust (FDD) zone, in order to enable full duplex oper...  
JP2017518000A
[Subject] Present invention, Set to the radio communications system which supports the subcarrier collection (Carrier Aggregation) based on a FDD band (Frequency Division DuplexBand) and a TDD band (Time Division Duplex Band). It is rela...  
JP2017108464A
To meet the need for a novel method for asymmetric communications in wireless communication system.A method according to an embodiment of the invention comprises the steps of receiving and transmitting signals over a time division duplex...  
JP2017092577A
To highly accurately estimate channel statistics even in an environment of much noise.A radio channel analysis device comprises: an observation data acquisition unit 22 for acquiring observation data including a plurality of pilot signal...  
JP2017085188A
To provide a base station device and a terminal device that can perform efficient communication in a system in which the base station device and the terminal device communicate with each other.A terminal device comprises: an upper-level ...  
JP2017511018A
For assignment of UL channel resource by determining the 1st DL HARQ timing of a FDD career (300), and determining the 2nd DL HARQ timing of a FDD career (300), It is a method in the 1st communication device (110) for enabling HARQ feedb...  
JP6100817B2  
JP2017505054A
The present invention indicates D2D correspondence procedure and a device, and it is characterized by method concerned comprising the following. A transmitting end device transmits a control message in the control domain of the present c...  
JP2017022511A
To provide a transmission/reception device, radio communication system, method, and program that improve the use efficiency of a radio frame.A legacy preamble portion of a radio frame has a function to maintain backward compatibility, an...  
JP2017011685A
To provide a transmission device that enables communication using a flexible frame configuration.A transmission device for transmitting a plurality of transmission data using the orthogonal frequency-division multiplexing (OFDM) scheme c...  
JP2016189502A
To provide a receiver, or the like, in which not only a single target but also multiple targets may be an object, by using a time division spread spectrum code and a frequency division spread code.A transmission unit 7 included in a tran...  
JP5969121B2  
JP2016040912A
To provide a method and a system for modulation and equalization in a time-frequency shift communication system.A data frame 601 defines a matrix of data elements [D]. A digital encoder multiplies 610 the matrix [D] 601 by a matrix [U1] ...  
JP5889922B2  
JP2016508306A
In order to multiplex physical channel 400 between a network node and a device which are contained in a mixture wireless network, It is a method in a network node and is a mixture wireless network, A cellular network containing one or mo...  
JP5852098B2  
JP5774631B2  

Matches 201 - 250 out of 800