47results about How to "High data transmission" patented technology

A point-to-point bus and a daisy chain bus are provided for supplying signals to stacked memories, and the stacked memories are mounted mutually apart by a distance equivalent to the length of the stacked memory on both surfaces of a module substrate. Furthermore, the memory chips arranged in a stacked memory mounted on one surface are set in an active state at the same time alternately with the memory chips arranged in a stacked memory mounted on another surface of the module substrate.

In a data communication system capable of variable rate transmission, high rate packet data transmission improves utilization of the forward link and decreases the transmission delay. Data transmission on the forward link is time multiplexed and the base station transmits at the highest data rate supported by the forward link at each time slot to one mobile station. The data rate is determined by the largest C / I measurement of the forward link signals as measured at the mobile station. Upon determination of a data packet received in error, the mobile station transmits a NACK message back to the base station. The NACK message results in retransmission of the data packet received in error. The data packets can be transmitted out of sequence by the use of sequence number to identify each data unit within the data packets.

A method and apparatus for providing efficient and accurate electronic data transmission of information on a data bus in the presence of noise. Data signals are received on a plurality of input lines by a spacial derivative encoder. The spacial derivative encoder encodes the signals and transmits them to a receiver having a spacial derivative decoder. The spacial derivative decoder then decodes the signals. Minimal overhead is required as for n input lines only n+1 lines are needed to transmit each of the encoded signals.

An optical fiber network can include an outdoor laser transceiver node that can be positioned in close proximity to the subscribers of an optical fiber network. The outdoor laser transceiver node does not require active cooling and heating devices that control the temperature surrounding the laser transceiver node. The laser transceiver node can adjust a subscriber's bandwidth on a subscription basis or on an as-needed basis. The laser transceiver node can also offer data bandwidth to the subscriber in preassigned increments. Additionally, the laser transceiver node lends itself to efficient upgrading that can be performed entirely on the network side. The laser transceiver node can also provide high speed symmetrical data transmission. Further, the laser transceiver node can utilize off-the-shelf hardware to generate optical signals such as Fabry-Perot (F-P) laser transmitters, distributed feed back lasers (DFB), or vertical cavity surface emitting lasers (VCSELs).

In a data communication system capable of variable rate transmission, high rate packet data transmission improves utilization of the forward link and decreases the transmission delay. Data transmission on the forward link is time multiplexed and the base station transmits at the highest data rate supported by the forward link at each time slot to one mobile station. The data rate is determined by the largest C / I measurement of the forward link signals as measured at the mobile station. Upon determination of a data packet received in error, the mobile station transmits a NACK message back to the base station. The NACK message results in retransmission of the data packet received in error. The data packets can be transmitted out of sequence by the use of sequence number to identify each data unit within the data packets.

The present invention discloses a data transmission apparatus and method for transmitting data between physical layer side device and network layer device, which encapsulating a novel LAPS framing-de-framing into SPE / VC of a HDLC-like frame using a variable SAPI value. The LAPS encapsulation consists of the start Flag Sequence, address field (SAPI, Service Access Point Identifier), control field (0x03), Information field (Ipv4, Ipv6, or PPP protocol data unit), FCS (Frame check sequence) and the ending Flag Sequence, or consists of the start Flag, Address field, Control field, SAPI field (two octets), Information field, FCS field and the ending Flag Sequence. The Flag Sequence (0x7E) identifies the beginning / end of a LAPS frame. The present invention can be used to adapt Internet / Intranet to telecommunication infrastructure, and can be applied to network devices such as core and edge routers, switch devices, IP based network accessing equipment, line cards, and interfacing units used in high speed, e.g. Gigabit applications, for adapting IP directly to SDH / SONET or simplified SDH / SONET, or other physical layer devices.

An electrical connector assembly (100) comprise an insulative housing (1) defining a mating direction, a plurality of terminals (2) received in the insulative housing (1) along the mating direction, a printed circuit board (3) attached to the insulative housing (1) and electrically connected to the terminals (2) and a cable (4) comprising a plurality of conductors (40) electrically attached to the printed circuit board (3). Each terminal (2) has a mating portion (23), a tail portion (21) and an enlarged interconnecting portion (22) connecting with the mating portion (23) and the tail portion (21).

A receiving process method of a receiving apparatus used in a mobile communication system is provided in which a sending apparatus sends a plurality of code channels as code channel groups to which spreading codes are assigned to a receiving apparatus, and the receiving apparatus receives the code channels. The receiving process method includes, when spreading codes used for the code channel groups are orthogonal code sequences, generating received spreading signal sequences of the code channel groups according to the number of received paths. The receiving process method further includes removing received spreading signal sequences of a received path of own code channel group of the receiving apparatus which should be removed from the received signals.

A method of configuring a frame for fast wireless communication and an apparatus for fast wireless communication are provided. The apparatus for fast wireless communication includes: a frame configuration unit configuring a frame including transmission data; a demultiplexing unit demultiplexing the transmission data included in the frame into N number of parallel streams (N: positive number greater than 2); N number of coding and modulation units connected in parallel to perform error correction coding and orthogonal frequency division multiplexing (OFDM) with respect to each of the N number of parallel streams; and a multiplexing unit multiplexing outputs of the N number of coding and modulation units into serial streams.

A method for multi-level data transmission includes encoding a data signal to be transmitted into N multi-level signals in accordance with an encoding table, where the data signal is characterized with a stream of binary data segments each of which has a data length of M bits, transmitting simultaneously the N multi-level signals through N data transmission channels, respectively; and decoding the N multi-level signals into the data signal by comparing each two of the N multi-level signals transmitted through the two data transmission channels to obtain a respective bit of the M bits of each binary data segment of the data signal based on comparison between the two corresponding multi-level signals.

The present invention relates to an optical probe system (100) comprising an optical probe (18) having an optical converter circuit (10) with an optoelectronic device (15). The optoelectronic device is arranged for converting a first radiation beam (2) from a radiation source (6) into electrical energy and for receiving first data comprised in said first radiation beam. The optical converter circuit (10) is powerable by said electric energy in the first radiation beam (2). The optoelectronic device is further arranged for emitting a second radiation beam (3) towards a photodetector (5), said emission being inducible by the incoming first radiation beam, the second radiation beam comprising second data. The invention is advantageous for obtaining an improved optical probe system capable of obtaining a higher data transmission and / or a relatively high power at the distal end of the optical probe system with relatively high efficiency and simultaneous at small size.

A meter-base surge protector adapted to be connected between multiple incoming power lines and a neutral line at a meter comprises first and second metal oxide varistors, which are each respectively connected in series to first and second thermal cut-offs and a gas discharge tube. The first and second thermal cut-offs are each connected to separate incoming power lines. The gas discharge tube is also connected to the incoming neutral line. The meter-base surge protector also includes a microcontroller for monitoring and detecting the voltage status at monitoring points within the circuit, or system, for detecting circuit, or system, malfunction. Upon the detection of a malfunction, the microcontroller activates a non-surge protection status indicator.

A method of configuring a frame for fast wireless communication and an apparatus for fast wireless communication are provided. The apparatus for fast wireless communication includes: a frame configuration unit configuring a frame including transmission data; a demultiplexing unit demultiplexing the transmission data included in the frame into N number of parallel streams (N: positive number greater than 2); N number of coding and modulation units connected in parallel to perform error correction coding and orthogonal frequency division multiplexing (OFDM) with respect to each of the N number of parallel streams; and a multiplexing unit multiplexing outputs of the N number of coding and modulation units into serial streams.

Provided are an apparatus and a method for multimedia data transmission in a cable network using a broadband and physical layer frame structure. The apparatus includes an external network matching module for transmitting data inputted / outputted from / to an external network to a Data Over Cable Service Interface Specification (DOCSIS) Media Access Control (MAC) layer, a DOCSIS MAC processor for transmitting the data from the external network matching module to a corresponding destination, a first downstream physical layer processor for handling an existing standard transmission in the data from the DOCSIS MAC processor, a second downstream physical layer processor for dealing with a new broadband transmission in the data from the DOCSIS MAC processor, and an upstream physical layer processor for providing received data to the DOCSIS MAC processor.

An electrical connector assembly (100) comprise an insulative housing (1) defining a mating direction, a plurality of terminals (2) received in the insulative housing (1) along the mating direction, a printed circuit board (3) attached to the insulative housing (1) and electrically connected to the terminals (2) and a cable (4) comprising a plurality of conductors (40) electrically attached to the printed circuit board (3). Each terminal (2) has a mating portion (23), a tail portion (21) and an enlarged interconnecting portion (22) connecting with the mating portion (23) and the tail portion (21).

A host controller disposed in a multi-function card reader includes: a Serial Advanced Technology Attachment (SATA) interface configured for coupling to a host computer; and a port multiplier having a control port and a plurality of peripheral device ports. The control port is coupled to the SATA interface, and the peripheral device ports are coupled to a plurality of peripheral device interfaces, respectively. The peripheral device interfaces are disposed in the multi-function card reader, and include at least one flash memory card interface.

A partial dual-port memory used for an electronic device such as a mobile phone includes a storage area with a given capacity. The storage area has a first area accessed only by a first processor, a second area accessed only by a second processor, and a common area having two ports, shared by the first and the second processors, and simultaneously accessible via the two ports.

Peripheral interface(s), a receiving apparatus and a data communication method using the same are disclosed. According to an embodiment of the present invention, a peripheral interface comprises one or more pins for multiplexing at least two types of interfaces, wherein the pins transmit interface signals corresponding to an interface type and type-associated operating mode which are selected from those multiplexed by the pins. According to another embodiment, a receiving apparatus comprises: a peripheral interface for multiplexing at least two types of interfaces; a receiving module for receiving an instruction signal; a selecting module for selecting an interface type and type-associated operating mode which corresponds to an external device to be connected, based on the instruction signal; a controlling module for controlling the peripheral interface to communicate with the external device via at least one interface signal corresponding to the selected interface type and type-associated operating mode.

A method and apparatus for spectrum access of secondary users in a cognitive radio system are provided. The method includes: estimating parameters of a primary channel according to the Markov model used by the primary channel; selecting a primary channel that has the largest available bandwidth according to the estimated channel parameters when multiple primary channels exist; detecting the selected primary channel; and accessing the primary channel to transmit data when the channel is idle. Therefore, an optimum primary channel can be selected from multiple primary channels by estimating channel parameters to satisfy high data transmission requirements and improve system performance.

A method for configuring hardware-configured optical links includes generating a first optical signal comprising a slow scan of wavelength channels where the slow scan has a dwell time on a particular wavelength channel. A second optical signal is generated comprising a fast scan of wavelength channels, where the fast scan has a dwell time on a particular wavelength channel and a complete channel scan time where the slow scan dwell time is greater than or equal to complete channel scan time. The first optical signal is transmitted over a link and a portion is then detected. A pulse of light having a duration that is less than the dwell time on the particular wavelength channel of the fast scan is then detected. Client data traffic is then sent over the link in response to the detected pulse of light and the detected portion of the first optical signal.

A system for processing a data signal (such as an ADSL or VDSL signal) includes a first decoder unit, such as a convolutional decoder or a QAM decoder, for receiving the data signal, decoding the second level of encoding and outputting a decoded signal and a first error indication signal indicative of errors in the decoded signal. A redundancy decoder employs the decoded signal and the first error indication signal (or transformed versions thereof) to perform redundancy decoding.

A look-ahead decision feedback equalizing receiver includes an equalizing block for amplifying a high-frequency component of an external data signal fed thereto in response to a first and a second input signal, to provide a first and a second equalized external data signal; a clock synthesizer for outputting sampling clocks, a timing thereof being adjusted by receiving an external clock synchronized with the external data signal; an over-sampler for over-sampling the first and the second equalized external data signal in synchronization with the sampling clocks. A MUX block for multiplexing the outputs of the over-sampler in response to outputs of the MUX block, to thereby attain decision results; and a phase detector for deciding the timing of the sampling clock by analyzing the decision results.

The invention provides an electronic apparatus provided with electronic devices for carrying out data transmission / reception through serial communication, designed to maintain highly efficient data transmission and prevent communication errors. An RDY line 15 which is kept to a high level in a basic condition is provided and when this line is driven low by a transmitting side IC 11, a transmission request is transmitted to a receiving side IC 12 and upon receiving this request, the receiving side IC 12 drives the RDY line 15 to a low level until the own preparations for receiving data are completed, while the transmitting side IC 11 performs no data transmission until the RDY line 15 is driven high after the transmission of the transmission request, and in this way the transmitting side IC 11 and receiving side IC 12 perform a handshake.

A receiver (100) for a three-wire digital interface, comprises a first resistive element (R1) coupled between a first input terminal (A) and a first junction node (JA), a second resistive element (R2) coupled between a second input terminal (B) and a second junction node (JB), and a third resistive element (R3) coupled between a third input terminal (C) and a third junction node (JC). A network (70) comprising first second and third network terminals (71, 72, 73) is coupled to, respectively, first, second and third junction nodes (JA, JB, JC). The network has substantially the same impedance between all pairs of the first, second and third network terminals. A first comparator (C1) has a non-inverting input (10) coupled to the first input terminal (A), an inverting input (12) coupled to the second junction node (JB), and an output (14) coupled to a first output terminal (AJ). A second comparator (C2) has a non-inverting input (20) coupled to the AK first input terminal (A), an inverting input (22) coupled to the third junction node (JC), and an output (24) coupled to a second output terminal (AK). A third comparator (C3) has a non-inverting input (30) coupled to the second input terminal (B), an inverting input (32) coupled to the third junction node (JC), and an output (34) coupled to a third output terminal (BJ). A fourth comparator (C4) has a non-inverting input (40) coupled to the second input terminal (B), an inverting input (42) coupled to the first junction node (JA), and an output (44) coupled to a fourth output terminal (BK). A fifth comparator (C5) has a non-inverting input (50) coupled to the third input terminal (C), an inverting input (52) coupled to the first junction node (JA), and an output (54) coupled to a fifth output terminal (CJ). A sixth comparator (C6) has a non-inverting input (60) coupled to the third input terminal (C), an inverting input (62) coupled to the second junction node (JB), and an N output (64) coupled to a sixth output terminal (CK).

The invention, an electronic book selection and delivery system, supports the inclusion of advertisements targeted based on subscriber likes and dislikes text. The system includes a targeted advertising management system that compiles information about electronic book subscribers, electronic books, and advertisements and optimally selects advertisements to be placed in electronic books customized for an individual subscriber. The system contains an operations center, a distribution system, a home system, and a billing and collection system. The operations center, in conjunction with the targeted advertising management system performs the functions of manipulation of text data, security and coding of text, cataloging of electronic books, message center, advertising selection, insertion and delivery functions. The home system connects to a distribution system, generates menus and stores text, and transacts through communicating mechanisms. A portable electronic book-shaped viewing device is used for viewing the text and advertisements. Advertisements may be targeted to individual home systems based on common characteristics of subscribers, including area of dominant influence, age, reading habits and income.

A system for processing a data signal (such as an ADSL or VDSL signal) includes a demodulator, a first decoder unit, such as a convolutional encoder or a QAM decoder, for receiving the output of the demodulator, decoding the second level of encoding and outputting a decoded signal and a first error indication signal indicative of errors in the decoded signal. The decoded signal is passed through a de-interleaving unit to form a de-interleaved signal. The first location signal is passed to an identifier unit which receives it, and from it produces a second error indication signal indicative of the errors in the de-interleaved signal. The de-interleaved signal and the second error indication signal are transmitted to a redundancy decoder which employs them to perform redundancy decoding.

A video signal processing circuit includes a graphics processing unit (GPU) and an optical transmitter. The GPU receives an electrical video signal having a standard format, and transforms the electrical video signal into an electrical control signal for controlling a display device. The optical transmitter electrically connects to the GPU for receiving the electrical control signal, so as to transform the electrical control signal into an optical signal and emit the optical signal.

A terrestrial communications network for providing broadband internet access to aerial platforms is described. One set of embodiments describe systems and methods for assigning aerial platforms to cell sites, and imposing a network frequency reuse pattern over the assigned beams, such as to optimize a certain network performance metric. Another set of embodiments describe systems and methods to iteratively optimize the aerial platform to cell site beam assignment, and the associated network frequency reuse pattern, according to the specified network performance metric. In other embodiments, systems and methods are described for measuring exogenous interference, to be used in SINR estimation received from different cell sites at the aerial platform in order to choose the cell site from which highest data rate is received.