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1. 发明授权

US5394437A High-speed modem synchronized to a remote CODEC 失效
标题翻译：高速调制解调器与远程编解码器同步
公开(公告)号：US5394437A
公开(公告)日：1995-02-28
申请号：US963539
申请日：1992-10-20
申请人： Ender Ayanoglu , Nuri R. Dagdeviren , James E. Mazo , Burton R. Saltzberg
发明人： Ender Ayanoglu , Nuri R. Dagdeviren , James E. Mazo , Burton R. Saltzberg
IPC分类号： H04B14/04 , H04L7/02 , H04L7/033 , H04L25/49 , H04B1/38
CPC分类号： H04L7/0054 , H04B14/046 , H04L25/4927 , H04L7/0334
摘要： A modem that operates reliably at a symbol rate that corresponds to twice its bandwidth even when it is coupled to a receiving A/D converter that operates under control of a clock is realized by synchronizing the modem's operation to the A/D's clock. The superior operation of this modem advantageously extends to A/D clock frequencies beyond the frequency of twice the modem's bandwidth. To minimize quantization noise, the modem's output is conditioned to minimize intersymbol interference by adjusting the modem's output to the A/D converter's sampling times and slicing levels. When the A/D's clock is higher than twice the bandwidth of the modem's output signal, some intersymbol interference cannot be avoided. In accordance with this invention, the position and value of this interference is computed at the receiver and subtracted from the received signal.
摘要翻译：通过将调制解调器的操作与A / D的时钟同步，可以实现以对应于其带宽的两倍的符号速率可靠地操作的调制解调器，即使当其耦合到在时钟的控制下操作的接收A / D转换器时。该调制解调器的优越操作有利地扩展到超过调制解调器带宽两倍的A / D时钟频率。为了最小化量化噪声，调制解调器的输出通过将调制解调器的输出调整为A / D转换器的采样时间和切片电平来调节最小化符号间干扰。当A / D的时钟高于调制解调器输出信号带宽的两倍时，无法避免某些符号间干扰。根据本发明，在接收机处计算该干扰的位置和值，并将其从接收信号中减去。

2. 发明授权

US5420973A Abridgment of text-based display information 失效
标题翻译：基于文本显示信息的细分
公开(公告)号：US5420973A
公开(公告)日：1995-05-30
申请号：US999199
申请日：1992-12-31
申请人： Nuri R. Dagdeviren
发明人： Nuri R. Dagdeviren
IPC分类号： H04M1/247 , H04Q11/04 , G09G5/22
CPC分类号： H04Q11/0435 , H04M1/247
摘要： A tagged string is developed by setting the value of a current priority variable to the maximum priority level, selecting a shortest length string of the plurality the characters of which have not all been incorporated into the tagged string as the current string, selecting a character of the current string that is not found in the string that was processed for incorporation into the tagged string immediately prior to the current string, adding the selected character to the tagged string and setting the value of the priority indicator for the just added character to the value of the current priority value. Character selection, addition and priority setting are repeated until the characters of the current string are all incorporated into the tagged string. Thereafter, the value of the current priority variable is decreased. The process, except for the setting of the current priority level, is repeated until all strings have been incorporated into the tagged string. The message may also include one or more supplementary characters, in which case each character is tagged with a priority indicator and a supplement indicator. If so, characters are selected if they are not found in the immediately preceding processed string or if they are not in the longest string. The supplement indicator for each selected character is set if the selected character is not in all strings having a length greater than the current string when the current string is not the longest string.
摘要翻译：通过将当前优先级变量的值设置为最大优先级来开发标记的字符串，选择其中多个字符的最短长度字符串未全部被并入带标签的字符串中作为当前字符串，选择字符在字符串中找不到的当前字符串，该字符串在紧接当前字符串之前被加入到标记的字符串中，将所选字符添加到标记的字符串，并将刚刚添加的字符的优先级指示符的值设置为值的当前优先级值。重复字符选择，添加和优先级设置，直到当前字符串的字符都被并入带标签的字符串。此后，当前优先级变量的值减小。重复该过程，除了当前优先级的设置之外，直到所有字符串都已被并入到标记的字符串中。消息还可以包括一个或多个补充字符，在这种情况下，每个字符被标记有优先级指示符和补充指示符。如果是，如果在紧接在前的处理字符串中找不到字符，或者如果它们不是最长的字符串，则会选择字符。如果当前字符串不是最长字符串时，如果所选字符不在所有长度大于当前字符串的字符串中，则设置每个所选字符的补充指示符。

3. 发明授权

US5329308A Bidirectional video telephony between cable television and switched telephone systems 失效
标题翻译：有线电视和交换电话系统之间的双向视频电话
公开(公告)号：US5329308A
公开(公告)日：1994-07-12
申请号：US921881
申请日：1992-07-29
申请人： Walter P. Binns , Nuri R. Dagdeviren , Khashayar Mohammadi , Andreas C. Papanicolaou , Deirdre T. H. Ryan , Cheng D. Yu
发明人： Walter P. Binns , Nuri R. Dagdeviren , Khashayar Mohammadi , Andreas C. Papanicolaou , Deirdre T. H. Ryan , Cheng D. Yu
IPC分类号： H04M3/42 , H04M3/00 , H04M3/56 , H04N7/14 , H04Q11/04 , H04M11/00
CPC分类号： H04Q11/0428 , H04N7/147 , H04N7/148 , H04Q2213/13103 , H04Q2213/13106 , H04Q2213/13141 , H04Q2213/13196 , H04Q2213/13199 , H04Q2213/13205 , H04Q2213/13209 , H04Q2213/13292 , H04Q2213/13332 , H04Q2213/13345 , H04Q2213/13353
摘要： In a video telephony system, a coaxial cable network, which is preferably a part of an existing cable television system, provides a local link for the transmission of the video telephone signals between each originating and destination location and a respective "head end" located on the cable company premises. Each of the head ends is connected to a "point of presence" of a telephone interexchange carrier so that a connection between pairs of head ends, and thus between a pair of video telephone locations, can be made via a switched digital network maintained by the carrier. Certain of originating and destination locations comprise a standard television set, serving as the audio/video display, and a consumer-type camera or camcorder, serving as the audio/video source. Others of the originating and destination locations comprise ISDN video telephones which are connected to the various points of presence of the interexchange carrier via local exchange carrier telephone networks. The video telephone number for cable subscriber locations are administered to be the same as the standard ten-(i.e., area code plus seven-) digit telephone number used for regular telephone calls directed to those locations.
摘要翻译：在视频电话系统中，优选地是现有有线电视系统的一部分的同轴电缆网络提供用于在每个发起和目的地位置之间传输视频电话信号的本地链路和位于有线公司场所。每个头端连接到电话交换台的“存在点”，使得可以通过由数字网络维护的交换数字网络来实现头端对之间以及因此在一对视频电话位置之间的连接载体起始和目的地的某些位置包括用作音频/视频显示器的标准电视机，以及用作音频/视频源的消费型照相机或摄像机。起始和目的地的其他部分包括ISDN视频电话，其经由本地交换运营商电话网络连接到交换运营商的各种存在点。用于有线用户位置的视频电话号码被管理为与用于定向到这些位置的常规电话呼叫的标准十（即区号加七位）电话号码相同。

4. 发明授权

US5483251A Abridgment of text-based display information 失效
标题翻译：基于文本显示信息的细分
公开(公告)号：US5483251A
公开(公告)日：1996-01-09
申请号：US999428
申请日：1992-12-31
申请人： Nuri R. Dagdeviren
发明人： Nuri R. Dagdeviren
IPC分类号： G08B5/22 , G09G3/04 , H04M1/247 , H04M3/42 , H04Q11/04 , G09G3/20
CPC分类号： G08B5/225 , G09G3/04 , H04M1/247 , H04M3/42 , H04Q11/0457 , H04M2201/38 , H04Q2213/1309 , H04Q2213/13175 , H04Q2213/13204 , H04Q2213/13209 , H04Q2213/1325 , H04Q2213/13336
摘要： The general problem of conveying a particular meaning in a message so that the meaning is most understandable when an abridged version of the message is displayed is solved by supplying as the message a "tagged" string in which all characters in the unabridged version of the string are tagged with respective priority indicators each having a value indicating a particular priority level. In a station set, an abridged version of the string for a particular priority level is determined by selecting all characters from the received, unabridged version having a priority indicator value equal to or greater than that particular priority level. A priority level is selected such that the corresponding abridged string fits within the available display length. In accordance with a feature of the invention, the message may further include one or more supplementary characters each also tagged with a priority indicator, and the abridged version of the string for a particular priority level includes not only the characters selected as aforesaid, but also any supplementary characters whose priority indicator has that particular value. This, advantageously, allows the version of the string for each priority level to include characters that a) do not even appear in the unabridged version of the string, or b) are not displayed as part of some abridged, but longer version(s) of the message, even though they appear in the unabridged version.
摘要翻译：在消息中传达特定意义的一般问题，以便在显示消息的简略版本时意义最为可理解的是通过向消息提供“标记”字符串，其中字符串的未删节版本中的所有字符被标记有各自具有指示特定优先级的值的各个优先级指示符。在站组中，通过从具有等于或大于该特定优先级的优先级指示符值的接收到的未删节版本中选择所有字符来确定用于特定优先级的字符串的简略版本。选择优先级，使得对应的精简字符串适合可用的显示长度。根据本发明的特征，消息还可以包括一个或多个补充字符，每个补充字符也被标记有优先级指示符，并且用于特定优先级的字符串的简略版本不仅包括如上所述选择的字符，而且还包括任何补充字符的优先级指示符具有该特定值。这有利地，允许用于每个优先级的字符串的版本包括a）甚至不出现在字符串的未修饰版本中的字符，或者b）不显示为某些简短但较长版本的一部分，的消息，即使它们出现在未被删除的版本中。

5. 发明授权

US5406583A Modem with received signals and transmitted signals comprising signal sets 失效
标题翻译：具有接收信号的调制解调器和包括信号组的发射信号
公开(公告)号：US5406583A
公开(公告)日：1995-04-11
申请号：US80161
申请日：1993-06-21
申请人： Nuri R. Dagdeviren
发明人： Nuri R. Dagdeviren
IPC分类号： H04B1/64 , H04B14/04 , H04L25/49 , H04M11/00 , H04M11/06 , H04L27/00 , H04L5/16
CPC分类号： H04L25/4927 , H04M11/06
摘要： An approach for operating modems in synchronism with the A/D and D/A converters of the network limits the analog signals transmitted to the modem to low levels and concurrently restricts the received signals to large steps. This set of apparently conflicting signal limitations is achieved with a signal conversion process interposed in the communication path between the two hybrids. In one embodiment of this invention, the code conversion is implemented in an adjunct processor that is associated with a switch that participates in the communication path between the two modems. In operation, a call that needs the conversion process is identified by virtue of the calling party's number and service associated service provision information. When it is established that both the calling party's modem and the receiving party's modem operate in the manner that requires signal conversion, conversion is executed. Echo cancellation may be applied to the signal in the code conversion apparatus to further improve performance.
摘要翻译：与网络的A / D和D / A转换器同步操作调制解调器的方法将传输到调制解调器的模拟信号限制在低电平，同时将接收到的信号限制在较大的步长。这种明显冲突的信号限制通过插入在两个混合器之间的通信路径中的信号转换处理来实现。在本发明的一个实施例中，代码转换在与参与两个调制解调器之间的通信路径的交换机相关联的附属处理器中实现。在操作中，通过主叫方的号码和服务相关的服务提供信息来识别需要转换处理的呼叫。当确定主叫方的调制解调器和接收方的调制解调器以需要信号转换的方式进行操作时，执行转换。回波消除可以应用于代码转换装置中的信号，以进一步提高性能。

6. 发明授权

US5371534A ISDN-based system for making a video call 失效
标题翻译：基于ISDN的系统进行视频通话
公开(公告)号：US5371534A
公开(公告)日：1994-12-06
申请号：US919000
申请日：1992-07-23
申请人： Nuri R. Dagdeviren , Khashayar Mohammadi , Andreas C. Papanicolaou
发明人： Nuri R. Dagdeviren , Khashayar Mohammadi , Andreas C. Papanicolaou
IPC分类号： H04M11/00 , H04N7/14 , H04Q11/04
CPC分类号： H04L65/1069 , H04L65/1083 , H04L65/1089 , H04Q11/0471 , H04L65/403 , H04Q2213/13034 , H04Q2213/13096 , H04Q2213/13176 , H04Q2213/13201 , H04Q2213/13204 , H04Q2213/13208 , H04Q2213/13209 , H04Q2213/13292 , H04Q2213/13332 , H04Q2213/13337 , H04Q2213/1336 , H04Q2213/204 , H04Q2213/337 , H04Q2213/392
摘要： A single medium (audio) voice grade call initiated by an ISDN video phone and directed to another ISDN video phone is converted into a multimedia (audio and video) ISDN call by a) maintaining the connection for the voice grade call while the ISDN audio and video connection is being established over a bearer channel of the ISDN subscriber loop different from the bearer channel being used by the voice grade connection, b) switching the audio signals from the voice grade call to the ISDN audio and video connection, once the ISDN audio and video connection is established, and c) tearing down the initial voice grade call.
摘要翻译：由ISDN视频电话发起并被引导到另一个ISDN视频电话的单媒体（音频）语音等级呼叫被转换成多媒体（音频和视频）ISDN呼叫，通过以下步骤：a）维持语音等级呼叫的连接，而ISDN音频和视频连接正在与ISDN用户环路的不同于语音等级连接使用的承载信道的承载信道建立，b）将语音等级呼叫的音频信号切换到ISDN音频和视频连接，一旦ISDN音频并建立视频连接，并且c）拆除初始语音等级呼叫。

7. 发明授权

US06496124B1 System and method for compensating for codec DC offset through a DC blocking channel and modem incorporating the same 有权
标题翻译：用于通过DC阻塞通道和包含其的调制解调器来补偿编解码器DC偏移的系统和方法
公开(公告)号：US06496124B1
公开(公告)日：2002-12-17
申请号：US09695671
申请日：2000-10-24
申请人： Nuri R. Dagdeviren
发明人： Nuri R. Dagdeviren
IPC分类号： H03M110
CPC分类号： H04L25/061
摘要： A system for, and method of, compensating for codec DC offset and a modem incorporating the system or the method. In one embodiment, the system includes: (1) a DC offset compensator that develops and transmits a DC offset indicator signal corresponding to a DC offset present along a transmission path to a receiving codec and (2) a DC offset encoder, coupled to the DC offset compensator, that receives the DC offset indicator signal and applies a time-varying DC offset compensating signal based thereon to a user data symbol stream transmitted along the transmission path.
摘要翻译：用于补偿编解码直流偏移的系统和方法以及包含该系统或方法的调制解调器。在一个实施例中，该系统包括：（1）DC偏移补偿器，其将对应于沿着传输路径存在的DC偏移的DC偏移指示符信号发送到发射接收编解码器，以及（2）DC偏移编码器， DC偏移补偿器，其接收DC偏移指示符信号，并且基于其沿着传输路径发送的用户数据符号流来应用时变DC偏移补偿信号。

8. 发明授权

US5550908A Modem communications interoperability with services equipped to provide calling party identity delivery with call waiting 失效
标题翻译：调制解调器通信与服务的互操作性，能够提供呼叫等待的呼叫方身份传送
公开(公告)号：US5550908A
公开(公告)日：1996-08-27
申请号：US457937
申请日：1995-06-01
申请人： Lujing Cai , Nuri R. Dagdeviren
发明人： Lujing Cai , Nuri R. Dagdeviren
IPC分类号： H04M1/57 , H04M3/428 , H04M3/42 , H04M1/56 , H04M3/00 , H04M15/06
CPC分类号： H04M1/57 , H04M3/428
摘要： Techniques are disclosed for providing interoperability between a first modem and a calling identity delivery on call waiting (CIDCW) service. According to an embodiment disclosed herein, a first modem is coupled to an alerting signal receiver and a communications re-establishment device. The alerting signal receiver receives an alerting signal generated in response to an incoming call from a third party line if the first modem is communicating with a second modem. The communications re-establishment device reestablishes communications between the first modem and the second modem after the alerting signal receiver receives an alerting signal. The first modem is equipped to receive the alerting signal and reestablish communications with the second modem independent of the specific capabilities of the second modem, so that these techniques can be utilized in conjunction with a second modem not constructed in accordance with the embodiments disclosed herein.
摘要翻译：公开了用于在呼叫等待（CIDCW）服务之间提供第一调制解调器和呼叫身份传递之间的互操作性的技术。根据本文公开的实施例，第一调制解调器耦合到报警信号接收器和通信重建设备。如果第一调制解调器正在与第二调制解调器通信，则警报信号接收器接收响应于来自第三方线路的呼入而产生的警报信号。在告警信号接收机接收到告警信号之后，通信重建设备重新建立第一调制解调器和第二调制解调器之间的通信。第一调制解调器被配备为接收报警信号并且与第二调制解调器重新建立与第二调制解调器的特定能力无关的通信，使得这些技术可以与未按照本文公开的实施例构造的第二调制解调器结合使用。

9. 发明授权

US07356095B2 Hybrid data recovery system 有权
标题翻译：混合数据恢复系统
公开(公告)号：US07356095B2
公开(公告)日：2008-04-08
申请号：US10323103
申请日：2002-12-18
申请人： Nuri R. Dagdeviren , Erol Eryilmaz
发明人： Nuri R. Dagdeviren , Erol Eryilmaz
IPC分类号： H03D1/00
CPC分类号： H04L7/033 , H04L25/061
摘要： In a data recovery circuit, multiple slicer outputs of incoming data for each data bit, e.g., one or more slicer outputs taken at or near the center of the eye and one or more slicer outputs taken at or near the leading edge and/or trailing edge of the eye, are processed in a manner that reduces the bit-error rate relative to the prior art. The data recovery circuit may be combined with state-of-the-art clock recovery circuits to yield improved clock and data recovery (CDR) circuits.
摘要翻译：在数据恢复电路中，用于每个数据位的输入数据的多个限幅器输出，例如在眼睛中心或附近拍摄的一个或多个限幅器输出，以及在前缘或/ 以相对于现有技术降低误码率的方式处理眼睛的边缘。数据恢复电路可以与最先进的时钟恢复电路组合以产生改进的时钟和数据恢复（CDR）电路。

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