摘要:
A movement of a small picture block in a frame of video signals is provided by recursively applying a gradient method to a picture block in a present frame and a preceding frame to provide a series of sub-movements until said sub-movement decreases less than a predetermined value, and the resultant movement is obtained by the sum of the sub-movements. The present invention provides high accuracy in estimation of movement of a block in a picture as compared with a conventional gradient method, and is attractive in hardware implementation.
摘要:
A computational algorithm provides new and effective interference cancellation of the in-band spurious signals for the Orthogonal Frequency Division Multiplex (OFDM) transmitters. This new interference cancellation transmits non-zero tones may be used to cancel the interference generated by the modulated data signals. This minimizes the number of tones used and maximizes the interference suppression achieved at the same time. The technique described is one of active interference cancellation (AIC).
摘要:
A new display system and method is described, utilizing a cellular telephone having digital camera capability and a television linked directly over a UWB wireless signal forming a UWB wireless video pico-net. The system utilizes a digital camera unit to capture picture or video images for UWB transmission directly to the television acting as a pico-net host controller, either independently or together with the cellular telephone operating as a pico-net child. The display system comprises and one or more remote devices and a host display communicating on a UWB wireless network. The host display comprises a display for presentation of the picture or video images and a UWB transceiver for processing image data from the picture or video images, for selectively sending and receiving the image data based on a request from the child. The one or more remote devices comprise a digital camera for capturing the picture or video images and another UWB transceiver as used in the host display. The host display has a generally larger display for improved presentation of the captured picture or video images useful and amusing for group, party, wedding, and conference viewing, or simply for enhanced personal enjoyment. For picture or video image sharing, the system further facilitates downloading the current picture or video images from the host display television to a requesting cellular telephone or digital camera equipped with the UWB transceiver. The UWB display system provides sufficient bandwidth to support numerous such download requests simultaneously, while utilizing a transmission technology having minimal power consumption.
摘要:
A navigation system uses XML/SVG format map data for achieving flexibility in modifying the map data. A method of converting geographic data into the XML/SVG format map data includes the steps of retrieving the geographic data, analyzing the retrieved geographic data for its data elements structure, data type and semantics, and converting the analyzed data to the XML/SVG format map data for with the navigation system. The XML/SVG format map data is constructed in a layered structure created based on administrative regions such as states, counties and cities. The XML/SVG format map data can be delivered to a remote user as a unit of administrative region through a communication network.
摘要翻译:导航系统使用XML / SVG格式的地图数据来实现修改地图数据的灵活性。 将地理数据转换为XML / SVG格式地图数据的方法包括以下步骤:检索地理数据,分析其数据元素结构,数据类型和语义的检索到的地理数据,并将分析的数据转换为XML / SVG格式 用导航系统映射数据。 XML / SVG格式的地图数据是根据州,县,市等行政区域创建的分层结构构建的。 XML / SVG格式地图数据可以作为管理区域的单位通过通信网络传送给远程用户。
摘要:
A wireless transceiver 10 is provided that includes a configurable analog component 14 and a controller portion 18. The configurable analog component 14 is operable to receive an input radio frequency signal and to transmit the output radio frequency signal. The controller portion 18 is operable to promote adjustment of a bandwidth of the configurable analog component 14 from at least a first bandwidth to a second bandwidth.
摘要:
The disclosed invention is a computer-implemented method for registering triggers for processing at the end of each transaction occurring in a database. This method positions a class where a given object exists; and for each trigger in the class, a determination is made if the trigger is in a trigger list of an object link. If it is not, a determination is made if a given object is in an object link of a transaction. If it is not, then the given object is inserted into the object link of the transaction; and then the trigger is inserted in a list of the object link. These steps are repeated until all triggers in the class have been processed. A determination is next made if there is a superclass of the class. If yes, then a superclass, is positioned and the steps are repeated for each trigger in the superclass (i.e., polymorphic trigger). Finally, if no superclass of the class exist, then the method is exited.
摘要:
A plurality of processor units (6a . . .6n), and a single host processor (4) coupled with the processor units (6a . . .6n) through transparent memories (10a . . . 10n) are provided for reading out results of parallel processing by the processor units. Each of the transparent memories (10a . . .10n) has a first bus (11a, 11b) for coupling processors (1a . . .1n) with memories (2a . . .2n) in the processor units (6a . . .6n), a second bus 12a, 12b) for coupling adjacent processor units, a first switch (13a, 13b, 14a, 14b) for switching the first bus, and the second bus, and a second switch (16) for switching direction of the second bus. The host processor (4) switches the first switch and the second switch, and accesses all the memories (2a . . .2n) simultaneously, and reads out those memories (2a . . .2n) simultaneously.
摘要:
An optical tracking control apparatus comprises a differential amplifier for differentially amplifying signals respectively reproduced from two mutually adjacent track turns of a guide track on both sides of an intermediate part in which an information signal is recorded and reproduced on and from a disc, a zero crossing detector for detecting a zero crossing of an output signal of the differential amplifier and for producing a switching pulse signal, and a polarity inverting circuit responsive to the switching pulse signal for alternately inverting the polarity of a crosstalk component reproduced from the two mutually adjacent track turns of the guide track as crosstalk for every one-half period of the switching pulse signal. An output signal of the polarity inverting circuit is used as a tracking error signal for controlling the tracking of the light beam.
摘要:
Moving picture signal transmission system, wherein the data-compression is effected for the moving picture by the intraframe-encoding and the interframe-encoding, the signal is divided into the fixed frame-length transmission frame, the transmission frame has the header (A, B, C) which identifies whether it is the first transmission frame, the middle transmission frame or the last transmission frame in one picture frame signal, and then the transmission frame is transmitted, a receiver informs a transmitter of the validity of the received sequence and the result of the error check, when a transmitter receives the error message from a receiver, the picture frame immediately after the message is encoded by only the intraframe-encoding, the succeeding frames are encoded through interframe-encoding, so that the influence of the error is removed within a short time.
摘要:
A navigation system uses XML/SVG format map data for achieving flexibility in modifying the map data. A method of converting geographic data into the XML/SVG format map data includes the steps of retrieving the geographic data, analyzing the retrieved geographic data for its data elements structure, data type and semantics, and converting the analyzed data to the XML/SVG format map data for use with the navigation system. The XML/SVG format map data is constructed in a layered structure created based on administrative regions such as states, counties and cities. The XML/SVG format map data can be delivered to a remote user as a unit of administrative region through a communication network.
摘要翻译:导航系统使用XML / SVG格式的地图数据来实现修改地图数据的灵活性。 将地理数据转换为XML / SVG格式地图数据的方法包括以下步骤:检索地理数据,分析其数据元素结构,数据类型和语义的检索到的地理数据,并将分析的数据转换为XML / SVG格式 与导航系统一起使用的地图数据。 XML / SVG格式的地图数据是根据州,县,市等行政区域创建的分层结构构建的。 XML / SVG格式地图数据可以作为管理区域的单位通过通信网络传送给远程用户。