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11. 发明申请

WO1993014583A1 SYSTEMS FOR AND METHOD OF IDENTIFYING V.FAST MODEM WITHIN EXISTING AUTOMATIC INTERWORKING PROCEDURE STANDARDS 审中-公开
标题翻译：现有自动交互程序标准中的系统和识别方法
公开(公告)号：WO1993014583A1
公开(公告)日：1993-07-22
申请号：PCT/US1993000140
申请日：1993-01-08
申请人： GENERAL DATACOMM, INC.
发明人： GENERAL DATACOMM, INC. , GOLDSTEIN, Yuri
IPC分类号： H04L05/16
CPC分类号： H04M11/06
摘要： A method for identifying a V.fast modem (20) within already standard automatic interworking procedures are provided. The method comprises utilizing standard methods for identifying a V.32/V.32bis modem up and through the standard ranging sequence, and after ranging and during the undefined 8192 baud period before an S signal would be sent by a V.32 or V.32bis modem the answering mode modem sends a predetermined signal (VFS) which does not resemble an S signal. Simultaneous with the answering modem sending VFS, the call mode modem looks for VFS. Upon detecting VFS, the call mode modem confirms receipt by sending a confirming signal (VFC) to the answer mode modem. Upon receiving VFC, if the communicating modems are not already in a probing mode, the modems will probe the line and continue according to whatever V.fast standards will be adopted. Preferably, VFS contains at least two tones. If desired, VFS can be a spectrum, with energy in frequency bands surrounding the S tone frequencies suppressed. This way, the VFS signal can be used by the answering modem for probing the line. Similarly, the confirming signal may be one or more tones, or a spectrum of frequencies for probing.

12. 发明申请

WO1993003561A1 APPARATUS AND METHOD FOR CONTROLLING TRANSMITTED POWER OF A MODEM 审中-公开
标题翻译：控制调制解调器传输功率的装置和方法
公开(公告)号：WO1993003561A1
公开(公告)日：1993-02-18
申请号：PCT/US1992006026
申请日：1992-07-17
申请人： GENERAL DATACOMM, INC.
发明人： GENERAL DATACOMM, INC. , GOLDSTEIN, Yuri
IPC分类号： H04L01/20
CPC分类号： G01R29/26 , H04L25/03343 , H04L27/00
摘要： The preferred method comprises measuring the signal/noise ratio and intermodulation distortion (IMD) relating to signals being transmitted over a channel (25) and adjusting the transmitting power of the transmitting modem (209) below a maximum permissable power in response to the measurements in order to reduce the error rate of the data transmission, the error rate being a function of both the signal/noise ratio and the IMD. Theoretically, the power can be adjusted to an optimal level, as the decrease in power increases the error rate due to signal/noise ratio according to a first function, but decreases the error rate due to IMD according to a second function. A first preferred manner of determining the final power level to be utilized is to calibrate a modem according to the techniques (e.g., Treillis precoding, etc.) it utilizes, and to utilize a look-up table for that modem to identify the desired power level based on the measured signal/noise ratio and the measured IMD. A second preferred manner is to decrease the signal power according to a formula which is a function of the third harmonic IMD.
摘要翻译：优选的方法包括测量与通过信道（25）发送的信号有关的信号/噪声比和互调失真（IMD），并且响应于最大允许功率，将发送调制解调器（209）的发送功率调整到最大允许功率以下为了降低数据传输的错误率，误码率是信噪比和IMD的函数。理论上可以将功率调整到最佳水平，因为功率的降低会根据第一功能增加由信号/噪声比引起的误码率，而是根据第二功能降低由于IMD造成的误码率。确定要使用的最终功率电平的第一优选方式是根据其使用的技术（例如，Treillis预编码等）来校准调制解调器，并且利用该调制解调器的查找表来识别期望的功率基于测量的信号/噪声比和测量的IMD。第二优选方式是根据作为三次谐波IMD的函数的公式来降低信号功率。

13. 发明申请

WO1993001671A1 AUTOMATIC DETECTOR AND SELECTOR OF RS-232 OR V.35 INTERFACE 审中-公开
标题翻译： RS-232或V.35接口的自动检测器和选择器
公开(公告)号：WO1993001671A1
公开(公告)日：1993-01-21
申请号：PCT/US1992005750
申请日：1992-07-09
申请人： GENERAL DATACOMM, INC.
发明人： GENERAL DATACOMM, INC. , EVANS, Patrick, A. , VELLUCCI, Eugene, Jr.
IPC分类号： H04L23/00
CPC分类号： H04L27/0008
摘要： An automatic detection and selection circuit (10) resident in a DCE is provided. The circuit (10) is coupled to the DCE interface connector and detects receipt by the DCE of V.35 and RS-232 transmit data signals, distinguishes between those signals, and selects circuitry for passing the data therethrough. The circuit comprises a switch (20) coupled to a first TX data terminal (pin 2 or P) of the DCE interface connector, first and second line receiving circuits (30, 50), a microprocessor (75), and relay (82). The first line receiving circuit (30) is coupled to a first pole of the switch (20) and to the second TX data terminal (pin S) of the DCE interface connector and provides indications as to whether or not an input signal is present at at least one of pins P and S. The second line receiving circuit (50) is coupled to the second pole of the switch (20) and provides indications as to whether or not a valid RS-232 transmit data signal is detected.
摘要翻译：提供驻留在DCE中的自动检测和选择电路（10）。电路（10）耦合到DCE接口连接器，并检测到DCE接收到V.35和RS-232发送数据信号，区分这些信号，并选择用于传递数据的电路。电路包括耦合到DCE接口连接器的第一TX数据端（引脚2或P）的开关（20），第一和第二线路接收电路（30,50），微处理器（75）和继电器（82）。第一线路接收电路（30）耦合到DCE接口连接器的开关（20）的第一极点和第二TX数据端子（引脚S），并提供关于输入信号是否存在的指示引脚P和S中的至少一个。第二线路接收电路（50）耦合到开关（20）的第二极点，并提供关于是否检测到有效的RS-232发送数据信号的指示。

14. 发明申请

WO1992008258A1 ELECTRICAL CONNECTORS HAVING TAPERED SPRING CONTACT ELEMENT 审中-公开
标题翻译：带连接弹簧接头元件的电气连接器
公开(公告)号：WO1992008258A1
公开(公告)日：1992-05-14
申请号：PCT/US1991008009
申请日：1991-10-25
申请人： GENERAL DATACOMM, INC.
发明人： GENERAL DATACOMM, INC. , REYMOND, Welles, K. , SORRENTINO, Gregory, L.
IPC分类号： H01R09/09
CPC分类号： H01R4/5016 , H01R4/48 , H01R12/52 , H05K2201/10393 , H05K2203/176
摘要： Electrical connectors are provided with spring contact elements (220f) each having a tapered contact portion (221) for mating with the plated rim of a hole. The tapered contact portion can be configured as a bifurcated cone, a suitably shaped wire (421), or other tapered, flexible contact. Besides the contact portion, the contact elements also include spring portions (236f), which can assume various configurations and tail portions (323) which can also assume various configurations. Where the tapered contact portion is a suitably shaped wire (421), the spring portion and the contact portion are essentially the same. The tail portions can be arranged to have tapered contact portions where permanent connection of the tail is not desired. The disclosed electrical connectors have housings (230) for the spring contact elements (220f), and a first make, last break function can be provided by configuring the housings appropriately. The holes with which the tapered spring contact elements mate can be part of a printed circuit board (250), a flex circuit (350h), or other object.
摘要翻译：电连接器设置有弹簧接触元件（220f），每个弹簧接触元件具有锥形接触部分（221），用于与孔的电镀边缘配合。锥形接触部分可以被配置为分叉锥体，适当形状的线（421）或其它锥形柔性接触件。除了接触部分之外，接触元件还包括可以呈现各种构造的弹簧部分（236f）和也可以呈现各种构造的尾部部分（323）。在锥形接触部分是适当形状的线（421）的情况下，弹簧部分和接触部分基本相同。尾部可以被布置成具有锥形接触部分，其中不期望尾部的永久连接。所公开的电连接器具有用于弹簧接触元件（220f）的壳体（230），并且可以通过适当地配置壳体来提供第一制动，最后断路功能。锥形弹簧接触元件配合的孔可以是印刷电路板（250），柔性电路（350h）或其它物体的一部分。

15. 发明申请

WO1992002085A1 APPARATUS AND METHOD FOR DETERMINING LINE RATES 审中-公开
标题翻译：用于确定线路速率的装置和方法
公开(公告)号：WO1992002085A1
公开(公告)日：1992-02-06
申请号：PCT/US1991005151
申请日：1991-07-22
申请人： GENERAL DATACOMM, INC.
发明人： GENERAL DATACOMM, INC. , GHELBERG, Emil , EVANS, Patrick, A. , LEE, Seng, Poh , LIYANAGE, Don, W.
IPC分类号： H04J03/22
CPC分类号： H04L25/0262
摘要： Apparatus and methods for automatically determining the bit rate of an incoming signal are provided. The apparatus includes a counter (30), a logic circuit (20), and a histogram generating circuit (45). The counter (30) counts the number of fast reference clock cycles which fit within each pulse of the incoming signal for a statistically significant number of pulses and provides indications thereof to the logic circuit (20). The logic circuit (20) associates each of the indications with one of a plurality of allowable bit rates. The histogram generating circuit (45) tracks the numbers of times the counts are associated with each allowable bit rate. In one embodiment, the allowable bit rate most often chosen is determined to be the bit rate of the incoming signal. In another embodiment, if a DDS1 line rate is determined to be the bit rate most often chosen, the DDS2 rate associated with the DDS1 line rate is provisionally selected. Also, if a DDS2 line rate is determined to the bit rate most often chosen, the DDS2 line rate is provisionally selected.

16. 发明申请

WO1997010674A1 TELECOMMUNICATIONS MULTIMEDIA CONFERENCING SYSTEM AND METHOD 审中-公开
标题翻译：电信多媒体会议系统和方法
公开(公告)号：WO1997010674A1
公开(公告)日：1997-03-20
申请号：PCT/US1996014621
申请日：1996-09-12
申请人： GENERAL DATACOMM, INC.
发明人： GENERAL DATACOMM, INC. , KERR, Gordon
IPC分类号： H04N07/15
CPC分类号： H04N21/2368 , H04N7/147 , H04N7/152 , H04N21/242 , H04N21/2665 , H04N21/4305 , H04N21/4307 , H04N21/4341 , H04N21/64307
摘要： Multimedia conferencing systems (100) are provided and include a plurality of audio/video terminals (112a-112c) which are coupled together via a telecommunications network (120), with the network including switches (140) and an audio bridge (130). The audio/video terminals (112a-112c) are provided with interface modules (114a-114c) which receive local audio and video signals, process the signals, and provide separate streams of properly formatted audio data and video data to the network (120). The video data is switched in the preferably ATM network (120) (i.e., routed) to its desired destination, while the audio data is first routed to the audio bridge (130) for mixing, and then to the desired destination. At the desired destination, the separate audio and video signals are processed and synchronized by the interface module (114) of the destination and provided to the audio/video terminal. Various different synchronization methods for the audio and video data streams are disclosed.
摘要翻译：提供多媒体会议系统（100）并且包括通过电信网络（120）耦合在一起的多个音频/视频终端（112a-112c），网络包括开关（140）和音频桥（130）。音频/视频终端（112a-112c）设置有接收本地音频和视频信号的接口模块（114a-114c），对信号进行处理，并将适当格式化的音频数据和视频数据的独立流提供给网络（120）。视频数据在优选的ATM网络（120）中被切换（即路由）到其期望的目的地，而音频数据首先被路由到音频桥接器130以进行混合，然后到达期望的目的地。在期望的目的地，单独的音频和视频信号由目的地的接口模块（114）处理和同步，并提供给音频/视频终端。公开了用于音频和视频数据流的各种不同的同步方法。

17. 发明申请

WO1996031005A1 OUTPUT CHARACTERISTICS STABILIZATION OF CMOS DEVICES 审中-公开
标题翻译： CMOS器件的输出特性稳定性
公开(公告)号：WO1996031005A1
公开(公告)日：1996-10-03
申请号：PCT/US1996004072
申请日：1996-03-26
申请人： GENERAL DATACOMM, INC.
发明人： GENERAL DATACOMM, INC. , REYMOND, Welles
IPC分类号： H03K19/0175
CPC分类号： H03K19/00384
摘要： Output characteristics of CMOS chips are controlled by providing a known and stable current to a representative transistor (58) of known relative size in the CMOS chip, and arranging the output CMOS driving transistors (T3) of the chip, which are of known size relative to the representative transistor, in current mirror relationship with the representative transistor (58). The representative transistor (58) is a diode-connected transistor with a saturation current which is generated by a current source (59b) and which is also provided to drive the output transistors (T3) when it is on.
摘要翻译：通过向CMOS芯片中具有已知相对尺寸的代表性晶体管（58）提供已知且稳定的电流来控制CMOS芯片的输出特性，并且布置已知尺寸相对的芯片的输出CMOS驱动晶体管（T3）代表晶体管，与代表晶体管（58）的电流镜像关系。代表晶体管（58）是具有由电流源（59b）产生的饱和电流的二极管连接的晶体管，并且还被提供以在其输出时驱动输出晶体管（T3）。

18. 发明申请

WO1993016537A1 HIGH SPEED MODEM SYSTEMS INCORPORATING DISTRIBUTION PRESERVING TOMLINSON ENCODING AND DECODING FOR SECONDARY CHANNELS 审中-公开
标题翻译：高速调制解调器系统进行分配保存TOMLINSON编码和解码二次通道
公开(公告)号：WO1993016537A1
公开(公告)日：1993-08-19
申请号：PCT/US1993001099
申请日：1993-02-08
申请人： GENERAL DATACOMM, INC.
发明人： GENERAL DATACOMM, INC. , GOLDSTEIN, Yuri , COLE, Paul, Dana
IPC分类号： H04L05/16
CPC分类号： H03M13/25 , H03M13/256 , H04L25/03343 , H04L25/49 , H04L25/4975 , H04L27/34 , H04L27/3461 , H04L2025/03802
摘要： Apparatus and methods in both modem transmitters (50) and receivers (130) are provided for accommodating secondary channel data without disturbing the trellis encoding, mapping, and Viterbi decoding of primary channel data, and without disturbing distribution preserving Tomlinson precoding and decoding of the primary channel data. In order to accommodate the secondary channel data, the secondary channel data are used to make quadrant decisions in a mapper (60), and concurrently therewith, dummy data or tertiary channel data corresponding in time with the secondary channel data are provided to the trellis encoder (55) so that the continuous working of the trellis encoder (55) can be maintained. In order to guarantee proper working of the trellis encoder (55), the secondary channel constellation points within a quadrant are clustered together and far from the quadrant boundaries.
摘要翻译：提供调制解调器发射机（50）和接收机（130）中的装置和方法用于容纳辅助信道数据，而不会干扰主信道数据的网格编码，映射和维特比解码，并且不干扰分配，保持对主要信道的Tomlinson预编码和解码频道数据为了适应辅助信道数据，二次信道数据被用于在映射器（60）中进行象限判定，并且与此同时，与辅助信道数据对应的伪数据或三次信道数据被提供给网格编码器（55），从而可以保持网格编码器（55）的连续工作。为了保证网格编码器（55）的正常工作，象限内的二次通道星座点聚集在一起，远离象限边界。

19. 发明申请

WO1991015067A1 METHOD FOR EMBEDDING INFORMATION IN MODEM HANDSHAKE PROCEDURE AND MODEMS INCORPORATING THE SAME 审中-公开
标题翻译：在调制解调器手册中嵌入信息的方法和与其相一致的方式
公开(公告)号：WO1991015067A1
公开(公告)日：1991-10-03
申请号：PCT/US1991001713
申请日：1991-03-14
申请人： GENERAL DATACOMM, INC.
发明人： GENERAL DATACOMM, INC. , HALLMAN, Edward, H.
IPC分类号： H04K01/00
CPC分类号： H04J3/12 , H04M11/06
摘要： Method for embedding additional information (e.g. a password function) in a handshake of communicating modems is provided. An auxiliary packet (20b) containing the additional information is placed in the handshake sequence of an originating modem in such a manner that it cannot be confused by the receiving modem with other signals which are required to be sent by the originating modem in the modem handshake. The answering modem looks for the auxiliary packet (20b), and if the auxiliary packet (20b) is not received, or if the information in the auxiliary packet (20b) is not sufficient to establish authorization, the answering modem causes the call to be dropped. In V.32 type modems, the auxiliary packet (20b) is placed by the originating modem somewhere in the training sequence (TRN) after the required twelve hundred eighty symbol intervals, and before the R2 sequence, and the auxiliary packet (20b) is generated in such a manner that it cannot be confused with the R2 sequence. In order to guarantee that the auxiliary packet (20b) is discernible and that no confusion with other signals is possible, the auxiliary packet (20b) is comprised of two multiplexed signals; an information signal at 2400 bit/second rate which includes a burst flag (50b) and an HDLC formatted start flag (52b), password (70b), check sum (75b), and stop flag (78b); and a 2400 bit/second R2 prevention signal which is coded to be compatible with the burst flag (50b) and to guarantee that regardless of the HDLC formatted signal, the composite auxiliary packet (20b) cannot constitute an R2 sequence.

20. 发明申请

WO1988008565A1 SYSTEM AND APPARATUS FOR PROVIDING THREE DIMENSIONS OF INPUT TO A HOST PROCESSOR 审中-公开
标题翻译：用于提供输入到主机处理器的三维尺寸的系统和装置
公开(公告)号：WO1988008565A1
公开(公告)日：1988-11-03
申请号：PCT/US1988001407
申请日：1988-04-29
申请人： GENERAL DATACOMM, INC.
发明人： GENERAL DATACOMM, INC. , GORNIAK, Andrew, M.
IPC分类号： G06F03/037
CPC分类号： G06F3/038 , G06F3/03542 , G06F3/03543 , G06F3/03545
摘要： An apparatus (50A), under the hand control of a user, for providing three dimensions of input to a computer processor while operating on an essentially planar surface, is disclosed. The apparatus (50A) comprises a first means (52A and 54A) for detecting the location or the movement of the apparatus (50A) in two perpendicular dimensions along the planar surface, second means (56A) for detecting and measuring an analog third dimension input to the apparatus (50A) under the control of the user while the apparatus (50A) is located along the planar surface, and means (60A) for receiving the three dimensions from the first (52A and 54A) and second (56A) means and for providing therefrom information, representative of the three dimensions, to a port (70A), for input to the computer processor. The apparatus (50A) can take various forms such as a computer mouse, stylus for a bit pad, or light pen.
摘要翻译：公开了一种在用户的手动控制下，用于在基本平坦的表面上操作时向计算机处理器提供三维输入的装置（50A）。装置（50A）包括用于沿着平坦表面检测设备（50A）的两个垂直尺寸的位置或移动的第一装置（52A和54A），用于检测和测量模拟第三维输入端的第二装置（56A）在装置（50A）沿着平坦表面定位的同时在用户的控制下向设备（50A）提供装置（50A），以及用于从第一（52A和54A）和第二（56A）装置接收三维的装置（60A）用于向端口（70A）提供代表三维的信息，用于输入到计算机处理器。该装置（50A）可以采用各种形式，例如计算机鼠标，钻头用触针或光笔。

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