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    • 2. 发明授权
    • Method and a device for image coding
    • 方法和图像编码装置
    • US5452103A
    • 1995-09-19
    • US964032
    • 1992-10-21
    • Harald Brusewitz
    • Harald Brusewitz
    • G06T9/00H04N7/14H04N7/30H04N7/46H04N7/50H04N1/41
    • H04N19/587H04N19/124H04N19/132H04N19/152H04N19/172H04N19/18H04N19/60H04N19/61H04N19/146
    • The invention relates to a method and a device for image coding having a particular, but not necessarily an exclusive, application in the transmission of video signals. The video signal is converted to a bit stream by coding and quantising and stored in a buffer store before it is transmitted on a transmission line at a constant bit rate. Problems experienced with the known technology have been the prevention of overflow in the buffer store and the buffer store being emptied prematurely. Both of these problems give rise to a deterioration in image quality. At the same time, the content of the buffer store should be as small as possible. According to the invention, not all the frames are coded and transmitted, but a certain number (k) of frames are skipped between each coded frame. The number k is based on the transmission rate R, the frame rate fo of the video signal and minimum value (bR/fo) set for the content of the buffer store. The number of skipped frames is selected so that the buffer store is not emptied below the set lower limit before the next frame is coded. The buffer store content is also regulated by skipping or setting to zero certain components in the bit stream from the coder core. The actual and ideal buffer store contents are determined and selected components of the bit stream are set to zero in dependence on the difference between the actual and the ideal content values. The invention also relates to a device for carrying out the method. The device is preferably constructed as a VLSI circuit.
    • 本发明涉及一种用于图像编码的方法和装置,其具有在视频信号的传输中具体而不一定是排他的应用。 通过编码和量化将视频信号转换为比特流,并将其存储在缓冲存储器中,然后以恒定比特率在传输线上传输。 已知技术遇到的问题是防止缓冲存储器中的溢出,缓冲存储器被过早地清空。 这两个问题都会导致图像质量的恶化。 同时,缓冲存储器的内容应尽可能的小。 根据本发明,不是所有的帧都被编码和发送,而是在每个编码帧之间跳过一定数量的帧(k)。 数字k基于传输速率R,视频信号的帧速率fo和针对缓冲存储器的内容设置的最小值(bR / fo)。 选择跳过的帧的数量,使得在下一帧被编码之前,缓冲存储器不被清空到设定的下限以下。 缓冲存储器内容也通过跳过或设置为从编码器核心的位流中的零个特定组件来调节。 确定实际和理想的缓冲存储器内容,并且根据实际和理想内容值之间的差异,将比特流的选择分量设置为零。 本发明还涉及一种用于执行该方法的装置。 该装置优选构造为VLSI电路。
    • 3. 发明授权
    • Method and an arrangement for splicing optical waveguides
    • 用于拼接光波导的方法和装置
    • US5347606A
    • 1994-09-13
    • US996313
    • 1992-12-23
    • Lars Johansen
    • Lars Johansen
    • G02B6/255G02B6/38
    • G02B6/3801G02B6/3803
    • The invention relates to a method and an arrangement for splicing optical waveguides and, more specifically, for effecting such splicing under field conditions i.e. directly in cable pits where the waveguides requiring splicing are housed. In accordance with the invention, a solidifiable refractive-index matching means is used to effect the splicing. The index-matching means is applied between the ends of the two waveguides in a support arrangement and is then solidified to form a splice having optical, ageing and temperature characteristics substantially corresponding to those of the waveguides. The temperature at which solidification is effected can be such that the refractive index-matching means is sintered to form a glass splice. The index-matching means is preferably a silica gel which can be solidified either chemically or by the application of heat.
    • 本发明涉及一种用于拼接光波导的方法和装置,更具体地说,涉及在现场条件下进行这种拼接,即直接在需要拼接的波导管的电缆凹坑中。 根据本发明,使用可凝固的折射率匹配装置来实现拼接。 折射率匹配装置被施加在支撑布置中的两个波导的端部之间,然后被固化以形成具有基本上对应于波导的光学,老化和温度特性的接头。 实现凝固的温度可以使得折射率匹配装置被烧结以形成玻璃接合。 折射率匹配装置优选是可以化学固化或通过加热固化的硅胶。
    • 4. 发明授权
    • Method of motion compensation and elastic deformation in picture
sequences
    • 图像序列中的运动补偿和弹性变形方法
    • US5617482A
    • 1997-04-01
    • US367773
    • 1995-01-03
    • Harald Brusewitz
    • Harald Brusewitz
    • G06T7/20H04N5/14H04N7/26G06K9/32G06K9/00
    • H04N19/54G06T7/2033H04N5/145
    • A method of motion compensation and elastic deformation in picture sequences in transmission of moving pictures between a transmitter and a receiver, that is a picture coding method in which the pixel values of the picture are determined using a previous picture. In the transmitter, each picture in the picture sequence is divided into triangles by suitably choosing corner points, and the motion between two successive pictures is estimated such that the motion vectors of all the corner points can be established. Information about the corner points and/or the motion vectors is transmitted from the transmitter to the receiver, in which the motion vectors of the internal points of the triangles are calculated using the three transmitted motion vectors belonging to the respective triangle. The pixel values in the corner points of the triangles and in the internal points of the triangles are calculated using the transmitted and the calculated motion vectors, respectively. Preferrably, the motion vectors of the internal points of the triangles are calculated by interpolation.
    • 一种在发送器和接收器之间的运动图像传输中的图像序列中的运动补偿和弹性变形的方法,即使用先前图像确定图像的像素值的图像编码方法。 在发射机中,通过适当地选择角点将图片序列中的每个图像分成三角形,并且估计两个连续图像之间的运动,使得可以建立所有角点的运动矢量。 关于角点和/或运动矢量的信息从发射机发送到接收机,其中使用属于相应三角形的三个发送的运动矢量来计算三角形的内部点的运动矢量。 分别使用传输的和计算的运动矢量来计算三角形和三角形的内部点的角点中的像素值。 优选地,通过内插来计算三角形的内部点的运动矢量。
    • 5. 发明授权
    • Device for identifying traffic on a paired cable
    • 用于识别配对电缆上的流量的设备
    • US5608756A
    • 1997-03-04
    • US395660
    • 1995-02-28
    • Alexander Latour-HennerBjorn Isheden
    • Alexander Latour-HennerBjorn Isheden
    • H04L25/02G01R23/16H04M3/22
    • H04L25/0262
    • The invention relates to a device identifying traffic on a cable. The different types of traffic are characterized by different levels and frequency ranges. The device includes a limiter connected to the paired cable and delivering an output signal having substantially constant amplitude And a frequency corresponding to the strongest frequency component of the input signal. The limiter may be constructed of inverters coupled as an amplifier or of an amplifier having a Schmitt trigger. The limiter is connected to a frequency indicator indicating what frequency ranges within which the strongest frequency component lies. The frequency indicator may consist of monostables or counters and decoders. The decoder interprets the output signal of the counter and may be constructed of a fixed gate network or of a programmable memory. The output signal of the frequency indicator is connected to an indicator indicating the frequency range in question, e.g. by means of flashing light-emitting diodes.
    • 本发明涉及一种识别电缆上的业务的设备。 不同类型的流量的特点是不同的级别和频率范围。 该装置包括连接到成对电缆的限幅器,并输出具有基本恒定振幅的输出信号和与输入信号的最强频率分量对应的频率。 限幅器可以由作为放大器或具有施密特触发器的放大器耦合的反相器构成。 限幅器连接到频率指示器,指示最强频率分量所在的频率范围。 频率指示器可以由单稳态或计数器和解码器组成。 解码器解释计数器的输出信号,并且可以由固定门网络或可编程存储器构成。 频率指示器的输出信号连接到指示所述频率范围的指示符,例如, 通过闪光的发光二极管。
    • 6. 发明授权
    • Method and arrangement for increasing the capacity in a mobile telephone
system
    • 增加移动电话系统容量的方法和装置
    • US5548804A
    • 1996-08-20
    • US214674
    • 1994-03-21
    • Henrik Rosenlund
    • Henrik Rosenlund
    • H04W8/04H04W8/06H04W8/08H04W8/12H04W60/00H04W92/24H04Q7/20
    • H04W8/085H04W60/00H04W8/04H04W8/06H04W8/12H04W92/24
    • Method and arrangement for increasing the capacity in a mobile telephone system having mobile telephone exchanges (MTX), base stations (BS) and mobile stations (MS). The MTX:s handle the traffic within their traffic area via the base stations. MS:s mobile stations being at home are registered in a home location register and MS.S visiting the area are registered in a visitor location register. When the home location register is filled up, the system capacity is increased by selective MTX as home exchange, so that the MS is registered as visiting the visitor location register. MTX A, MTX B is preferably used as home exchange which only handles its home location register and associated functions, the radio traffic being handled via another MTX C which only handles its visitor location register and associated functions.
    • 用于增加具有移动电话交换机(MTX),基站(BS)和移动台(MS)的移动电话系统的容量的方法和装置。 MTX:通过基站处理其流量区域内的流量。 MS:家中的移动台登记在归属位置寄存器中,MS.S访问该区域被登记在访问者位置寄存器中。 当家庭位置寄存器填满时,通过选择性MTX作为家庭交换来增加系统容量,使得MS被登记为访问访问者位置寄存器。 MTX A,MTX B优选地用作家庭交换机,其仅处理其归属位置寄存器和相关联的功能,无线电业务通过仅处理其访问者位置寄存器和相关功能的另一MTX C来处理。
    • 7. 发明授权
    • Method for estimating traffic density in mobile telephone networks
    • 用于估计移动电话网络中的业务密度的方法
    • US5418843A
    • 1995-05-23
    • US185973
    • 1994-02-10
    • Paul Stjernholm
    • Paul Stjernholm
    • H04B7/26H04W16/18H04M3/22H04M11/00H04M15/00H04Q9/00
    • H04W16/18
    • A method is employed for estimating traffic density in a mobile telephone network. A specialized measuring mobile unit which is capable of determining its own position independently of the system is allowed to pass through relevant traffic routes during which time the measuring mobile station transmits a radius signal as well as its position to the various fixed measuring stations. The signal strength received from the measuring mobile station is recorded synchronously with the aid of a number of suitably cited measuring base stations. The measuring values from the measuring stations are compiled with the respective registered positions so that an unambiguous relationship between the signal strength values and the position of a mobile station passing through the entire system is obtained. An actual traffic is then measured with the aid of the measuring station and the measurement results thereof are related to the geographic positions so that a topographic distribution of the traffic density is obtained.
    • PCT No.PCT / SE93 / 00575 Sec。 371日期:1994年2月10日 102(e)日期1994年2月10日PCT提交1993年6月24日PCT公布。 公开号WO94 / 05098 日期1994年3月3日。一种用于估计移动电话网络中的交通密度的方法。 能够独立于系统确定其自己的位置的专门的测量移动单元被允许通过相关的交通路线,在此期间,测量移动台将半径信号及其位置发送到各种固定测量站。 借助于多个适当引用的测量基站,同步地记录从测量移动站接收到的信号强度。 来自测量站的测量值用相应的登记位置进行编译,从而获得信号强度值与通过整个系统的移动台的位置之间的明确关系。 然后借助于测量站测量实际的交通量,并且其测量结果与地理位置有关,从而获得交通密度的地形分布。
    • 9. 发明授权
    • Method and an arrangement for performance monitoring in a
telecommunications network
    • 电信网络中性能监控的方法和安排
    • US5694451A
    • 1997-12-02
    • US466663
    • 1995-06-06
    • Frederik Arinell
    • Frederik Arinell
    • H04M3/00H04M3/42H04W24/00H04M3/22H04B17/00H04M11/00H04M15/00
    • H04W24/00
    • The invention relates to a method and an arrangement for terminal-oriented performance monitoring in a telecommunications network having a public side and a mobile subscriber side with terminals. Information with respect to network performance is collected by the subscriber terminals or in connection with the subscriber terminals and transferred to the public side. The information includes the grade of service, information on error conditions and information on the quality of the transmission channel in the network and non-connection information. With the aid of the invention the network operator is provided with a picture of the performance from the point of view of the customer and he can thus operate the network more effectively at the same time as the performance experienced by the customer is kept under control.
    • 本发明涉及具有公共侧和具有终端的移动用户侧的电信网络中用于面向终端的性能监视的方法和装置。 关于网络性能的信息由用户终端收集或者与用户终端相关联并转移到公共侧。 信息包括服务等级,错误信息信息以及网络传输信道质量信息和非连接信息。 借助于本发明,网络运营商从客户的角度提供性能的图片,并且因此可以在客户所经历的性能得到控制的同时更有效地操作网络。
    • 10. 发明授权
    • Speech synthesis with weighted parameters at phoneme boundaries
    • 在音素边界加权参数的语音合成
    • US5659664A
    • 1997-08-19
    • US468640
    • 1995-06-06
    • Jaan Kaja
    • Jaan Kaja
    • C10L9/02G10L13/04G10L5/04
    • G10L13/07G10L13/04G10L25/15
    • The invention relates to a method and an arrangement for speech synthesis and provides an automatic mechanism for simulating human speech. The method provides a number of control parameters for controlling a speech synthesis device. The invention solves the problem of coarticulation by using an interpolation mechanism. The control parameters are stored in a matrix or a sequence list for each polyphone. The behaviour of the respective parameter with time is defined around each phoneme boundary and polyphones are joined by forming a weighted mean value of the curves which are defined by their two associated matrices/sequences list. The invention also provides an arrangement for carrying out the method.
    • 本发明涉及一种用于语音合成的方法和装置,并且提供了一种用于模拟人类语音的自动机制。 该方法提供用于控制语音合成设备的多个控制参数。 本发明通过使用插值机制解决了共聚焦问题。 控制参数存储在每个polyphone的矩阵或序列表中。 通过形成由它们的两个相关联的矩阵/序列表定义的曲线的加权平均值,在每个音素边界周围定义相应参数随时间的行为。 本发明还提供了一种用于执行该方法的装置。