202 results about "Transmission switching" patented technology

A system and method for switching data packet traffic distribution across diverse transmission medium according to detected quality of service characteristics for a given data packet rate from server to client. It should be recognized that diverse medium are not interdependent with regard to fading or signal strength considerations. One mode of switching comprises switching all the data packets from transmission on a first medium to transmission over a second diverse medium. In a second mode of switching the distribution is changed according to a media-time coding mechanism in which typically data is being transmitted simultaneously across more than one of the multiple diverse medium. The data packet transmissions preferably comprise audio-video data packet streams, such as MPEG-2 streams. By way of example, the diverse transmission medium may comprise a wireless connection (i.e. WiFi) used in combination with a power-line network connection, such as within a home network.

A system and method for controlling operations in a cellular system is disclosed. A serving cell or the mobile telephone switching office (MTSO) determines that a portable wireless device operating in a serving cell needs to be handed off (a “handoff”). The position of the portable wireless device is determined. The position may be determined based on any of a variety of localization techniques, such as time difference of arrival (TDOA), angle of arrival (AOA), location pattern matching (LPM), global positioning system (GPS), or other localization techniques. A target cell is selected based on the position of the portable wireless device. Generally, the target cell is selected as the cell that is closest to the portable wireless device. Factors such as a position vector and / or a velocity vector may be assessed in selecting the target cell. Based on the target cell that is selected, the MTSO assigns the portable wireless device to the target cell and the transmission is handed off to the new cell.

The method for transmitting frames in WLAN of the present invention first allocates a first queue for storing frames to be transmitted in the DCF mode, and a second queue for storing frames to be transmitted in the PCF mode. An incoming frame will be classified and stored in a corresponding queue according to the classification of the incoming frame. In the DCF mode, the DCF frames stored in the first queue are transmitted. After a delivery traffic information message (DTIM) period, the transmission of the frames switches to the PCF mode and begins the transmission of the PCF frames in the second queue. In addition, the present invention can allocate a third queue for storing management frames and a fourth queue for storing multicast frames and broadcast frames. The priority for transmitting frames, from highest to lowest, is the fourth queue, the third queue, the second queue and the first queue.

A MIMO FMCW radar sensor and a MIMO time multiplexing method for localizing a radar target, in which an FMCW radar measurement is performed with a transmitted signal whose modulation pattern encompasses, for different transmission switching states that differ in terms of the selection of antenna elements used for transmission, mutually temporally interleaved sequences of ramps; ambiguous values for the relative velocity of the radar target are determined from a position of a peak in a two-dimensional spectrum; phase relationships between spectral values of spectra are checked for agreement with phase relationships expected for several of the determined values of the relative velocity; on the basis thereof, an estimated value for the relative velocity of the radar target is selected from the determined periodic values of the relative velocity; and the angle of the radar target is determined on the basis of amplitudes and / or phase relationships between obtained baseband signals.

A fiber to the home FTTH network for convergence of broadcasting and communication is disclosed. The network includes: an OLT for receiving and converting a first predetermined number of broadcast signals and an Ethernet signal into a plurality of converted optical signals, combining the converted optical signals into converged optical signals for subsequent transmission by an optical wavelength division multiplexing method; and an optical network unit (ONU) for classifying the optical signal transmitted from the OLT into the first predetermined number of broadcast signals and the Ethernet signal, switching a second predetermined number of broadcasting signals of the first predetermined number of broadcasting signals according to each SIU by channel selection information contained in upstream Ethernet information, and switching the Ethernet signal to be transmitted to the SIU according to each SIU so as to transmit the switched signal.

A display device for a vehicle includes a display LCD and a control LCD, which has transmission switching portions, each of which has three segment units. When the vehicle is running, left-side two-third segment units of each transmission switching portion are set to a non-transparent state in a portion of the control LCD corresponding to the left half screen of the display LCD. In contrast, in a portion of the control LCD corresponding to the right half screen of the display LCD, all the segment units are set to a transparent state. Thus, an image in the right half screen is visible from a driver seat, while an image in the left half screen is not visible from the driver seat. Both the images in the right half screen and the left half screen are visible from a front passenger seat.

Any one of a plurality of terminals sharing the same number determines whether or not to switch a transfer to any of the other terminals sharing the same number. If it determines that the transfer is to be switched, it authenticates one terminal among the other terminals sharing the same number, and then outputs a transfer switching request according to the authenticated terminal to a communication control station. The communication control station performs a transfer switching process concerning the authenticated terminal based on the transfer switching request outputted from the first terminal.

The invention relates to a MIMO-FMCW radar sensor and to a MIMO-time-division multiplexing method for locating a radar target (18), wherein a FMCW radar measurement is carried out using a transmission signal, of which the modulation patterns for different transmission switching states (m), which differ in the selection of antenna elements (12) used for transmitting, comprise time-interleaved sequences (22; 26; 32; 36) of ramps (24; 28; 34; 38); ambiguous values for the relative speed (v) of the radar target (18) are determined from a position (k, l) of a peak in a two-dimensional spectrum (56); phase relationships between spectral values of spectra (X) are checked for conformity with the phase relationships (a (v,m)) expected for a plurality of the determined values of the relative speed (v); based on said phase relationships, from the determined periodic values of the relative speed (v), an estimated value for the relative speed (v) of the radar target (18) is selected; and based on amplitudes and / or phase relationships between obtained base band signals (b), the angle of the radar target (18) is determined.

A dual display is disclosed, including a first electrowetting display device and a second electrowetting display device, and a reflection transmission switching device therebetween, wherein the first electrowetting display device and the second electrowetting display device have a function of displaying images and can be switched to a transmissive mode. The invention further provides a dual display, comprising a first substrate, a second substrate opposite the first substrate, a first patterned electrode and a second patterned electrode disposed on the first substrate, a reflective layer disposed on the first patterned electrode, a first patterned hydrophobic layer over the first patterned electrode, a second patterned hydrophobic layer over the second patterned electrode, a wall defining a pixel of the dual display, a first non-polar liquid disposed on the first patterned hydrophobic layer, and a second non-polar liquid disposed on the second patterned hydrophobic layer.

The invention discloses a route device using optical switching as core, in order to increase the capability and performance of route. A route method comprises: a receiving signal step of receiving light signal in the formula defined by the router; a sending signal step of sending the light signal in the formula defined by the router; a route analyzing step of obtaining the routing information of light signal in the formula defined by the router; a control exchanging step of controlling the route of light signal in the formula defined by the router based on the result of the route analyzing step. The optical switching mechanism is used inside the router to break through the limit of electrical exchange capacity of the existing Internet core router, so that the capability and performance of router is increased. Because the treatment capacity and ability is increased, in the new networking, the light transmission network is replaced therefore the networking and maintaining is simplified.

Provided is a radio communication device which can reduce the affect of inter-cell interference using a small reception process amount. The radio communication device includes a sequence number setting unit (101) which sets a sequence number for a ZAC sequence used for spreading a response signal and another sequence number for a ZAC sequence used for a reference signal in a ZAC sequence generation unit (102) and a ZAC sequence generation unit (109), respectively. The ZAC sequence generation unit (102) generates a ZAC sequence of the set sequence number from the sequence number setting unit (101). A spread unit (104) spreads the response signal. The ZAC sequence generation unit (109) generates a set ZAC sequence from the sequence number setting unit (101) and outputs the ZAC sequence as a reference signal to an IF FT unit (110). A sequence number setting unit (101) changes the sequence number at a transmission switching timing between the response signal and the reference signal.

A method, apparatus and system for redundancy backup of video services are provided. The method includes: receiving a data stream from a video server; stopping delivering the data stream to an Internet Protocol (IP) network if determining that the data stream is abnormal; and triggering the IP network to change delivery of the data stream over to a redundant video server. With the method provided by the present invention, when the data stream played by the Near Video on Demand (nVOD) system is detected as abnormal, a route changeover can be completed so that the program stream of a redundant nVOD server is delivered to the IP network.

A voice signal from a microphone is processed for compressing and coding in a voice compressor. The compressed voice data is input into a transmission switching section. The transmission switching section switches and outputs the compressed voice data to either a UDP transmitter or a TCP transmitter according to a transmission switching signal that the network situation supervisory section outputs. The transmission switching signal allows-transmission using the UDP transmitter when a network is in a situation with a margin, and transmission using the TCP transmitter when a network is in a confused situation responding to network congestion information that is obtained from a network interface. This allows a protocol transmitting the compressed voice data to be selected corresponding to a congested situation of the network, and thereby a voice call without interruption can be obtained even though the network is in a confused and low-quality situation.

The invention discloses a ground-space-based integral measurement and control system applied to a terrestrial space. The system includes a ground measurement and control station; a relay satellite; anair vehicle including an upper antenna, a lower antenna, a radio frequency front end, a transceiving assembly and an air vehicle management computer, wherein the upper antenna and the lower antenna are used for receiving and transmitting of ground-base uplink and downlink signals and space-based forward and backward remote control signals; the radio frequency front end is used for performing filtering hybrid amplification on signals and outputting the signals; the transceiving assembly is used for conversion through modulation and demodulation and for receiving CCSDS remote measurement framesor acquiring positioning information according to remote measurement parameters of the transceiving assembly itself and calculating the optimal direction transmission of the space-based forward remote control signals; the air vehicle management computer is used for transmitting the received positioning information and the calculated optimal direction of the space-based forward remote control signals to the radio frequency front end for transmission switching between the upper antenna and the lower antenna and transmitting selected space-based backward remote control signals to the relay satellite. According to the invention, a ground-based and a space-based remote measurement and remote control links can be implemented at the same time and whole course coverage of flight tasks is realized.

Example method, apparatus, and computer program product embodiments are disclosed to enable out-of-band short-range communication carrier transport switching for connection setup in device-to-device communication. Example embodiments of the invention include a method comprising the steps of initiating, by a first device, an out-of-band short-range carrier transport switch with a second device by transmitting wireless communication signals for providing the out-of-band carrier communication connection, and sending, by the first device, in-band short-range carrier communication connection parameters including one or more parameters indicating a timer value of an interval related to an expected completion time of a transport switch procedure, to the second device via the out-of-band short-range carrier communication connection.

The invention relates to a real-time underwater monitoring system for a water treatment coagulation process. The real-time underwater microscopic monitoring system comprises a cleaning system, a multi-channel image data transmission switching system, a microscopic shooting unit, a host and a terminal, wherein the host is connected with and controls the cleaning system and the multi-channel image data transmission switching system; the multi-channel image data transmission switching system is connected with the microscopic shooting unit through a data wire; and various controls of the host andimages are displayed at the terminal. The real-time underwater microscopic monitoring system disclosed by the invention is scientific and reasonable in design and is visual and accurate in data acquisition; the problem that accurate process monitoring cannot be finished by a traditional flocculation pool in real time is solved; and the real-time underwater microscopic monitoring system is a more advanced process monitoring means for the flocculation pool and is beneficial to the promotion of the development of a water treatment technology by a water treatment plant.

The invention discloses an Ethernet ring network failure recovery method, an Ethernet ring network and switching equipment. The method comprises the following steps that: main switching equipment sends a detection message carrying port mark information to transmission switching equipment in the ring network; after receiving the detection message, the transmission switching equipment, if port blockage exists in the transmission switching equipment, restores the blocked port thereof to a normal state when the port mark information in the transmission switching equipment indicates that the port blockage exists; when the port mark information in the transmission switching equipment indicates that the port blockage does not exist, the transmission switching equipment keeps one port in the blockage state, restores other ports to the normal state, and modifies the port mark information to indicate that the port blockage exists; the transmission switching equipment forwards the detection message to adjacent transmission switching equipment or main switching equipment; and after receiving the detection message from the port, the main switching equipment restores the port thereof in the blockage state to the normal state if the port mark information in the main switching equipment indicates that the port blockage exists. The method avoids communication interrupt caused by switching of blocked ports in the prior art.

The invention relates to the transmission of switching movements into a multi-speed transmission. The switching rod or a steel cable section is introduced into the sleeve drive from the outside, ie between the wing and the outer end of the frame, through an opening extending axially between the bearing cone and the shaft. The linear switching movement on the cable is thus transmitted directly and without conversion to the transmission. In order to guide the steel cable in the sleeve, a groove is provided on the bearing cone and / or on the inner diameter of the bearing cone. The cables are deflected from the axial direction to the frame into cable guide grooves of convex profile on a fixed element, preferably on the bearing cone or on the shaft.

In the revolving restricted state, the planetary gear meshes with the drive input gear, and the clutch mechanism is unable to transmit the rotational drive force; in the freely revolvable state, the planetary gear is separated apart from the drive input gear, and the clutch mechanism is able to transmit the rotational drive force, the drive transmission switching mechanism is provided with first and second abutting portions which are configured to come into contact with the planetary arm rotated in the freely revolvable state so as to initialize the revolving position of the planetary gear, and the drive transmission switching mechanism is capable of selecting which one of the first and second abutting portions will come into contact with the planetary arm in accordance with the position of the drive input gear transmitting the rotational drive force among the plurality of drive input gears.

The invention provides an intelligent substation auxiliary system integrated monitoring platform which is used for solving the problem that a traditional substation monitoring platform is low in automation level, safety level and working efficiency and high in management and maintenance cost. The intelligent substation auxiliary system integrated monitoring platform comprises a monitoring system, a signal transmission switching system and a terminal system, wherein the monitoring system, the signal transmission switching system and the terminal system are connected through a distributed integrated structure. The monitoring system comprises a power monitoring subsystem, an environment monitoring subsystem, a device monitoring subsystem, a security and protection monitoring subsystem, an online monitoring subsystem and a video monitoring subsystem. The signal transmission switching system comprises a communication management machine, a video management machine and a switch. The terminal system comprises a monitoring server and a monitoring platform body.

The invention discloses a multi-axle distributed driving pure electric vehicle seriation platform. The platform is a distributed multi-purpose pure electric vehicle seriation common platform composed of at least two double-motor driving axles and can be used for pure electric trucks, passenger cars and self-propelled trailers. The distributed driving chassis platform is composed of multiple double-motor driving axles. Transmission ratios of axles on the driving axles can be different, transmission switching control is conducted through a whole vehicle controller and a motor controller, optimizing control is conducted according to the requirements on resistance of various road surfaces and the driving speed, and the work efficiency of motors can be fully exerted. Multiple sets of motors, battery packs and controllers are dispersed and parallelly used, the safety of a power supply can be improved, and the system cost can be reduced.

A display device for a vehicle includes a display LCD and a control LCD, which has transmission switching portions, each of which has three segment units. When the vehicle is running, left-side two-third segment units of each transmission switching portion are set to a non-transparent state in a portion of the control LCD corresponding to the left half screen of the display LCD. In contrast, in a portion of the control LCD corresponding to the right half screen of the display LCD, all the segment units are set to a transparent state. Thus, an image in the right half screen is visible from a driver seat, while an image in the left half screen is not visible from the driver seat. Both the images in the right half screen and the left half screen are visible from a front passenger seat.

Any one of a plurality of terminals sharing the same number determines whether or not to switch a transfer to any of the other terminals sharing the same number. If it determines that the transfer is to be switched, it authenticates one terminal among the other terminals sharing the same number, and then outputs a transfer switching request according to the authenticated terminal to a communication control station. The communication control station performs a transfer switching process concerning the authenticated terminal based on the transfer switching request outputted from the first terminal.

A video signal transmission switching apparatus is disclosed. The video signal transmission switching apparatus is coupled between a source apparatus and a plurality of display apparatuses. The video signal transmission switching apparatus includes a controller, a USB Type-C connecting interface, a plurality of video output interfaces and a switching module. The controller is coupled to the source apparatus through the USB Type-C connecting interface at least including a specific channel. The controller is coupled to the plurality of display apparatus through the plurality of video output interfaces respectively. The switching module is coupled to the specific channel and coupled to the plurality of video output interfaces respectively. The switching module detects a specific signal of the plurality of display apparatus and controls the specific channel to re-perform handshaking accordingly.

A process for handling downlink transmission to a User Equipment (UE) (10) from a Service Provider (3), said UE (10) being adapted to be associated with at least two Subscriber Identities Modules (SIM) respectively associated with a first and a second communication Network (1, 2), said process involving the steps of: - establishing (21) a first connection between said UE (10) and said first communication network (1); and - requesting (22) a second connection between said UE (10) and said second communication network (2) by issuing a specific command associated with a specific value or parameter representative of a request of switching between said first and second communication network the downlink transmission from said Service provider (3); - issuing (23) from said second communication network a specific request to said Service Provider (3) for establishing a new connection between said second communication network and the Service Provider and informing the service provider that a switching of network is requested by the UE; - transmitting (24) an acknowledgment from said Service Provider (3) to said second communication network (2) confirming the establishment of the connection between the second communication network and the SP (3) without starting data transfer through said second communication network (2); - transmitting (25) from the second communication network to the User Equipment (10) an acknowledgment related to said second communication network (2) and said Service Provider (3); - issuing (26) by said UE a request to said SP (3) to data communication, e.g. through said first communication network and the request being associated with a sequence number of a first packet to be communicated through said second communication network (2); - performing (27) data storage for said SP and said UE; - transmitting (28, 29) downlink data communication through said second communication network; - transmitting NACK / ACK messages (30, 31) to said SP through said second communication network; - transmitting (32) to said first communication network a request to release the connection issued by the Service Provider; - transmitting (33) a connection release between the UE and the first communication network.

The invention relates to a digital matrix control system for realizing multi-mode access. An HDMI (High-Definition Multimedia Interface) transmission technology is adopted to complete the internal digital transmission of the system and data transmission among cascaded matrix hosts. Compared with the prior art, the invention has the following advantages that firstly, the HDMI technology is used skillfully to transmit any formats of data signals and greatly increase transmission bandwidth; next, when multiple machine cabinets (matrix hosts) are cascaded, the transmission among the machine cabinets adopts HDMI transmission technology and optical fiber transmission technology, and the signal loss is almost zero; in addition, the system has the advantages of static resistance, large transmission distance, low cost, and the like by using the HDMI transmission; and finally, digital signals are directly processed by the system and transmitted in the system, a transmission switching process causes no signal loss.

A packet switched network architecture comprising a location area connected by a radio access network to at least two core networks having different functionality, wherein the radio access network switches packet transmissions from each terminal in the location area to one of the at least two core networks.

A mobile communication device that flexibly supports various services which utilize both Internet communications and short-distance wireless communications. An instruction data receiving section receives instruction data indicating a protocol in which a set of data exchanges are to be performed. An instruction data analysis section analyzes the received instruction data, and controls a reception switching section and a transmission switching section based on a result of the analysis. The reception switching section receives data from either an Internet reception section or a short-distance wireless reception section under the control of the instruction data analysis section. The transmission switching section outputs data to either an Internet transmission section or a short-distance wireless transmission section under the control of the instruction data analysis section.