128results about How to "High speed communication" patented technology

A display data packet contains identification information. A display unit communication system comprises a control unit, a terminal adaptor to which a terminal adaptor ID is assigned and which is connected to the control unit, and a display unit to which a display unit ID is assigned and which is connected to the terminal adaptor in series and drives a display element according to the display data packet supplied from the control unit. The terminal adaptor receives a display data packet the terminal adaptor ID of which agrees with that contained in the identification information and transfers the display data packet to the display unit. The display unit receives the display data packet the display unit ID of which agrees with that contained in the identification information, and drives the display element to display an image.

A repeater (200) facilitates wireless communication between a first communication device (100) and a second communication device (105) in a wireless network using a time division duplex protocol for data transmission. The repeater (200) includes a receiver (310, 315) for receiving a signal on either of at least two bi-directional communication frequencies simultaneously. A signal detector (362) is operatively coupled to the receiver (300, 310, 315) for determining if the signal is present on at least one of the two bi-directional frequencies. A frequency converter (320, 321, 323, 324, 360, 361) is for converting the signal present on one of the bi-directional frequencies to a converted signal on the other of the bi-directional frequencies. A transmitter (300, 325, 330, 335, 345, 350) is for transmitting the converted signal on the other of said bi-directional frequencies.

In a computer communication network including a firewall which protects a secured host against attack from outside computers, the host communicating with an outside computer, through the firewall, via data packets which include byte sequence numbers. In a communication between the host and computer in which one of them acts as a source and the other as a destination for the communication, a sequence number offset is derived by the firewall which characterizes the byte sequence number received from the source and the byte sequence number the firewall will provide to the destination for that communication. In a communication received from the source, the firewall adds the offset to byte sequence numbers in a packet passing between the source and destination, in order to determine the byte sequence numbers it will provide to the destination. Thus, proper sequence numbers can be provided to both locations, without the firewall having to restructure packets. This speeds communication between the source and destination and substantially reduces the commitment of processing and storage resources.

A system and methods for more efficient review, processing, analysis and diagnoses of medical imaging data is disclosed. The system and methods include automatically segmenting and labeling imaging data by anatomical feature or structure. Additional tools that can improve the efficiency of health care providers are also disclosed.

Processing a received optical signal in an optical communication network includes equalizing a received optical signal to provide an equalized signal, demodulating the equalized signal according to an m-ary modulation format to provide a demodulated signal, decoding the demodulated signal according to an inner code to provide an inner-decoded signal, and decoding the inner-decoded signal according to an outer code. Other aspects include other features such as equalizing an optical channel including storing channel characteristics for the optical channel associated with a client, loading the stored channel characteristics during a waiting period between bursts on the channel, and equalizing a received burst from the client using the loaded channel characteristics.

In a through-via-hole path of semiconductor chips stacked in N stages, repeater circuits are provided in the respective semiconductor chips. For example, a signal transmitted from an output buffer circuit of the semiconductor chip is transmitted to an input buffer circuit of the semiconductor chip via the repeater circuits of the respective semiconductor chips. The respective repeater circuits can isolate impedances on input sides and output sides, and therefore, a deterioration of a waveform quality accompanied by a parasitic capacitance parasitic on the through-via-hole path of the respective semiconductor chips can be reduced and a high speed signal can be transmitted.

The disclosure has application for use in establishing a communication link between a first location and a second location, the first location having an electrical driver circuit that receives input data to be communicated, and the second location having an electrical receiver circuit for producing output data representative of the input data. The method includes the following steps: providing a tilted charge light emitting device at the first location and coupled with the driver circuit such that the light produced by the tilted charge light-emitting device is a function of the input data; providing an optical fiber between the first and second locations; coupling light from the tilted charge light emitting device into the optical fiber; and providing, at the second location, a photodetector coupled with the optical fiber and with the receiver circuit; whereby electrical signals representative of the input data are output from the receiver circuit.

A surface emitting laser device is disclosed that is able to selectively add a sufficiently large loss to a high order transverse mode so as to efficiently suppress a high order transverse mode oscillation and to oscillate at high output in a single fundamental transverse mode. The surface emitting laser device includes a first resonance region that includes an active layer and spacer layers, two distributed Bragg reflectors that sandwich the resonance region, and a current confinement structure that defines a current injection region for the active layer. At least one of the distributed Bragg reflectors includes a second resonance region arranged in the current injection region excluding a predetermined region surrounding a center of the current injection region.

A channel dividing unit of a transmitter divides a transmission signal into a plurality of channels based on channel structure information indicating a method of structuring an MIMO informed from a receiver. An STC unit realizes transmission diversity according to STC processing for each of the channels divided. A channel estimating unit of the receiver estimates a channel gain for transmission and reception of a signal. Based on a result of estimation of the channel gain, a physical configuration of the transmitter, and a physical configuration of the receiver, a transmission-side channel-structure determining unit of the receiver determines a structure of an MIMO channel, and informs channel structure information to the transmitter.

There is provided a secret data transmission method where a first device generates plural pieces of distributed data including data of a master key and transmits these by wireless communication to a second device and where the second device receives the plural pieces of distributed data and reconstructs the master key, wherein the first device arranges data obtained by performing an EXOR operation in sequence on plural pieces of random number data and the master key to generate secret data, generates a last piece of distributed data by performing an EXOR operation in sequence on the plural pieces of distributed data and the secret data, and transmits the plural pieces of distributed data to the second device, and the second device performs an EXOR operation in sequence on the plural pieces of distributed data to reconstruct the secret data, divides the reconstructed secret data, and performs an EXOR operation on the divided pieces of data to reconstruct the master key.

A system for use with communications according to TCP, or a similar protocol, includes a sender host, one or more routers, and a destination host. Each router includes means for generating acknowledgement packets and translating addresses associated with data packets. When a data packet is received by a router, an acknowledgement packet is returned with a source address corresponding to the router and a destination address corresponding to the sender host. The sender host perceives the acknowledgement packet as having been sent by the destination host. As the acknowledgment packet is sent by the router, and not the destination packet is sent by the router, and not the destination host, this system allows acknowledgment packets to be received on a shorter timescale, reducing the effects of a link delay. Although the route between the sender host and the destination host is divided into multiple connections, the hosts perceive a single, conventional connection.

An optical communication unit has a pair of cable-side communication units provided for a full duplex communication system connected to each other with a pair of optical fiber cables, has apparatus-side communication units provided for full duplex communication system directly connected to the cable-side communication units respectively each to form a closest contact state therebetween, and provides controls for a speed to double speed in full duplex system by using an infrared ray IR between the closely contacted units.

[Object] To promptly decode and reproduce content of any encoding formats.

[Solving Means] If a TV (1) judges that it cannot decode content to be viewed by a user, the TV (1) asks another apparatus such as a game apparatus (3) or PC (4) whether it can decode the content via a high-speed data line (150) capable of performing bidirectional IP communication in expanded HDMI and transmits the content and decoding request command thereof to an apparatus which has answered that it can perform decoding, via the high-speed data line (150). The game apparatus (3) or the PC (4) which has received the decoding request decodes the content and transmits the decoded content as a baseline signal to the TV (1) via TMDS channels in expanded HDMI so that the content is reproduced.