摘要:
A motion compensated video coding method which can be applied especially in transfer of video streams using low transmission bit rate is presented. In the motion compensated coding method, the motion of picture elements between a piece of reference video information and a piece of current video information is estimated and then modeled using certain basis function and coefficients. The coefficients are quantized, and the quantizer is selected according to a certain selection criterion, for example, based on a target image quality or on a target transmission bit rate. Preferably the selection criterion is such that it automatically adjust the accuracy with which the motion of picture elements is represented to be related to the accuracy with which the prediction error information is represented. A decoding method, an encoder and a corresponding decoder are also described.
摘要:
A user input device includes a sensor capable of sensing surface relief of human skin, a movement detector responsive to variation of the output of the sensor for detecting movement of skin across the sensor, and a user interface apparatus responsive to the movement detector to alert its state in correspondence to the detected movement.
摘要:
A telephone apparatus comprises a body part (601) and a sleeve-like grip part (602) mounted to the body part (601) for longitudinal slidable movement between a retracted position and an extended position. Mechanically coupled to the body part (601) and the grip part (602) there is a spring (700, 1203) for effecting the longitudinal slidable movement. A locking mechanism (1004, 1006, 1007) is provided for detachably locking the body part and the grip part into the retracted position. There is also a user-actuatable releasing actuator (1005) for releasing the locking mechanism. The releasing actuator (1005) is located within the grip part (602).
摘要:
A mobile internet protocol regional paging network 10 includes a paging foreign agent for handling a regional registration of a mobile node visiting a paging area, which includes internet protocol subnetworks. In operation, the mobile node periodically can provide an idle mode request to the paging foreign agent to enter an idle mode so as to deactivate one or more components for energy-saving purposes and reduce active communication with the mobile internet protocol regional paging network. The invention provides a small and link-layer independent extension to Mobile Internet Protocol with Regional Registrations to support power-constrained operation in the mobile nodes and to reduce routing state information in the visited domain. The extension allows a Mobile Node to enter a power saving Idle Mode during which its location is known with the coarse accuracy defined by a Paging Area. The mobile node and the visited domain may optionally agree on time slots used for Agent Advertisements and paging. The mobile node 14 may include a mobile phone, a pager, or any telecommunications device capable of wireless communicating, including communication over the internet.
摘要:
The invention relates to a method for identifying base stations of a time division cellular network in a mobile station. An object of the invention is to speed up the identification of new base stations. In accordance with the invention frame timing difference data for the neighbor base stations (301) and/or the broadcast control channel time slot data for the neighbor base stations are transmitted from the serving base station to the mobile station; reception times for the neighbor base stations' system data are determined in the mobile station on the basis of said frame timing differences and/or the broadcast control channel time slot data (302) and system data are read and neighbor base stations are identified (303). The invention is also directed to a mobile station applying the method.
摘要:
The object of the invention is a method, network element, and system for positioning a subscriber terminal in a packet-switched mobile telephone network, the said network comprising a core network element (SGSN, 504), base stations, a Base Station Controller (501) controlling these, and a mobile terminal; the connections in the mobile telephone network are arranged in a packet-switched fashion. The system comprises a location unit (SMLC, 505) for determining the position of the terminal, functionally connected with the Base Station Controller (501) of the mobile telephone network; the connection between the Base Station Controller (501) and the location unit (SMLC) is circuit-switched. The base station controller (501) comprises both circuit-switched (BSC) and packet-switched (PCU) functionality for processing circuit-switched, and respectively, packet-switched messages, as well as means (506, 507) for establishing an association between the circuit-switched and the packet-switched functionality for the transmission of data related to a specific positioning between the packet-switched and the circuit-switched functionality.
摘要:
The present invention relates to a terminal (1) for a communication network, the terminal being capable of supporting a plurality of applications (17, 18) and having means of communicating user messages. The terminal comprises means for receiving user messages having data and a header relating to one of the applications (17, 18) and means (8) for addressing the data to a respective application according to the header. In an embodiment the user messages are short messages and the data comprises characters in the short message.
摘要:
A method is presented for conveying information over a wireless interface in the form of a digitally encoded message. A set of bits is provided as a first piece of information to be transmitted, and a certain baseband signal processing method is applied to process the bits to be transmitted. In addition, a second piece of information is provided to be transmitted and the baseband signal processing method is selected from a set of allowed baseband signal processing methods in accordance with the provided second piece of information.
摘要:
The invention concerns generally the technological field of antenna arrangements in mobile stations. The invention also concerns a mobile station equipped with such an antenna arrangement. One idea of the present invention is providing a planar antenna in which the printed wired board (PWB) of the mobile station is used. The planar antenna has preferably an air gap between the radiator element (216) and the ground plate (218). In order to reduce the effects of the RF fields to other phone electronics there is a sheet of low reluctance material (245) for reducing the RF fields. The sheet of low reluctance material is so located that it covers an area of the printed wired board which is not covered by the radiator element or the ground plane of the planar antenna. The low reluctance material is preferably ferrite material, such as flexible ferrite sheet, and it may be attached to the display unit (208a, 208b) or on the PWB (234).
摘要:
The invention is related to optimization of data transmission in TCP/IP networks, particularly to problems created by transmission of encrypted traffic. According to the invention, an indication of a TCP ACK being carried in the encrypted payload of a IP datagram is added in the IP header of the datagram. The indication may simply be a flag indicating the presence of a TCP acknowledgment. The indication may also contain the acknowledgment number, which allows processing of the encrypted traffic based on the acknowledgment number. In IPv4 datagrams, the indication may be inserted as an extra option field. In IPv6 datagrams, the indication may be inserted as an extension header.