公开(公告)号：US08559530B2

公开(公告)日：2013-10-15

申请号：US11925462

申请日：2007-10-26

Applicant: Jerry G. Jex ,  Jed D. Griffin ,  Arnaud J. Forestier ,  Kersi H. Vakil ,  Abhimanyu Kolla

Inventor： Jerry G. Jex ,  Jed D. Griffin ,  Arnaud J. Forestier ,  Kersi H. Vakil ,  Abhimanyu Kolla

IPC: H04B14/06 ,  H04L7/06

CPC classification number: H04L25/4904 ,  H04L25/0272 ,  H04L27/24

Abstract: In some embodiments, the inventions includes a transmitter including a cycle encoding circuit to receive a data input signal and to provide a full cycle encoded signal in response thereto by continuously joining portions of different encoding signals. Some of the encoding signals have a different frequency than others of the encoding signals and some of the encoding signals have a different phase than others of the encoding signals. Data is represented in data time segments of the full cycle encoded signal and no data time segment has more than one cycle of an encoding signal. In some embodiments, a receiver receives the cycle encoded signal and recovers data of the data input signal.

Abstract translation: 在一些实施例中，本发明包括发射机，其包括用于接收数据输入信号的周期编码电路，并通过连续地连接不同编码信号的部分来响应于此提供全周期编码信号。 编码信号中的一些具有与编码信号的其他编码信号不同的频率，并且一些编码信号与编码信号的其它信号具有不同的相位。 数据在全周期编码信号的数据时间段中表示，并且没有数据时间段具有多于一个编码信号的周期。 在一些实施例中，接收器接收周期编码信号并恢复数据输入信号的数据。

公开(公告)号：US07079826B2

公开(公告)日：2006-07-18

申请号：US10099831

申请日：2002-03-15

Applicant: Khurram Muhammad ,  Dirk L. Leipold ,  Feng Chen ,  Kenneth J. Maggio

Inventor： Khurram Muhammad ,  Dirk L. Leipold ,  Feng Chen ,  Kenneth J. Maggio

IPC: H04B1/06

CPC classification number: H04B1/0025 ,  H03H15/00 ,  H03H19/004 ,  H04B1/0003 ,  H04B1/28 ,  H04L27/24

Abstract: A first periodic voltage waveform (20) is downconverted into a second periodic voltage waveform (35, 36). A plurality of temporally distinct samples (SA1, SA2, . . . ) respectively indicative of areas under corresponding half-cycles of the first voltage waveform are obtained. The samples are combined to produce the second voltage waveform, and are also manipulated to implement a filtering operation such that the second voltage waveform represents a downconverted, filtered version of the first voltage waveform.

Abstract translation: 第一周期性电压波形（20）被下变频成第二周期性电压波形（35,36）。 获得分别表示第一电压波形的相应半周期下的面积的多个时间上不同的样本（SA 1，SA 2 ...）。 将样本组合以产生第二电压波形，并且还被操纵以实现滤波操作，使得第二电压波形表示第一电压波形的下变换的滤波版本。

公开(公告)号：US20050286645A1

公开(公告)日：2005-12-29

申请号：US11104301

申请日：2005-04-11

Applicant: Kenneth D'Alessandro ,  Forrest Brown ,  Ronald Kunzel

Inventor： Kenneth D'Alessandro ,  Forrest Brown ,  Ronald Kunzel

IPC: H04B3/00 ,  H04L27/00 ,  H04L27/24 ,  H04L27/26

CPC classification number: H04L27/24 ,  H04L27/2602

Abstract: A method for generating a substantially sinusoidal waveform containing encoded digital data having one of a first value and a second value at selected phase angles θn comprises generating the waveform having an amplitude Y defined by a first function at phase angles lying outside of regions having a range Δθ beginning at each phase angle θn, said first function being Y=sin θ; generating the waveform having an amplitude Y defined by the first function at phase angles lying inside the regions having a range of Δθ beginning at each phase angle θn where data of the first value is to be encoded; and generating the waveform having an amplitude Y defined by a second function at phase angles lying inside the regions having a range of Δθ associated with each phase angle θn where data of the second value is to be encoded, the second function being different from Y=sin θ.

Abstract translation: 一种用于产生包含具有选定的相位角θn的第一值和第二值之一的编码数字数据的基本上正弦波形的方法包括：产生具有第一功能定义的振幅Y的波形 位于具有从每个相位角θn n开始的范围Deltatheta的区域之外的角度，所述第一函数为Y =sinθ; 产生具有第一函数限定的幅度Y的波形，该相位角位于具有第一值的数据将被编码的每个相位角θN n处的具有Deltatheta范围的区域内; 并且产生具有第二功能限定的振幅Y的波形，该相位角位于具有与要对其进行编码的第二值的数据相关联的每个相位角θn n的范围内的Deltatheta范围内的相位角， 第二个函数不同于Y =sinθ。

公开(公告)号：US20030050027A1

公开(公告)日：2003-03-13

申请号：US10099831

申请日：2002-03-15

Inventor： Khurram Muhammad ,  Dirk Leipold ,  Feng Chen ,  Kenneth J. Maggio

IPC: H04B001/06 ,  H04B007/00

CPC classification number: H04B1/0025 ,  H03H15/00 ,  H03H19/004 ,  H04B1/0003 ,  H04B1/28 ,  H04L27/24

Abstract: A first periodic voltage waveform (20) is downconverted into a second periodic voltage waveform (35, 36). A plurality of temporally distinct samples (SA1, SA2, . . . ) respectively indicative of areas under corresponding half-cycles of the first voltage waveform are obtained. The samples are combined to produce the second voltage waveform, and are also manipulated to implement a filtering operation such that the second voltage waveform represents a downconverted, filtered version of the first voltage waveform.

Abstract translation: 第一周期性电压波形（20）被下变频成第二周期性电压波形（35,36）。 获得分别指示在第一电压波形的相应半周期之下的区域的多个时间上不同的样本（SA1，SA2 ...）。 将样本组合以产生第二电压波形，并且还被操纵以实现滤波操作，使得第二电压波形表示第一电压波形的下变换的滤波版本。

公开(公告)号：US20020172170A1

公开(公告)日：2002-11-21

申请号：US10132624

申请日：2002-04-25

Inventor： Khurram Muhammad ,  Carl Panasik ,  Dirk Leipold

IPC: H04B001/69 ,  H04B001/707 ,  H04B015/00 ,  H04L027/30 ,  H04L027/06

CPC classification number: H03H15/00 ,  H03H19/004 ,  H04B1/0003 ,  H04B1/0025 ,  H04B1/28 ,  H04L27/24

Abstract: A first periodic voltage waveform (20) is downconverted into a second periodic voltage waveform (35, 36). A plurality of temporally distinct samples (SA1, SA2, . . . ) respectively indicative of areas under corresponding fractional cycles of the first voltage waveform are obtained. The samples are obtained in response to a control signal indicative of a code used to produce the first voltage waveform, and the samples are combined to produce the second voltage waveform.

Abstract translation: 第一周期性电压波形（20）被下变频成第二周期性电压波形（35,36）。 获得分别表示第一电压波形的相应分数周期下的面积的多个时间上不同的样本（SA1，SA2 ...）。 响应于指示用于产生第一电压波形的代码的控制信号而获得样本，并且采样被组合以产生第二电压波形。

公开(公告)号：US5623518A

公开(公告)日：1997-04-22

申请号：US47193

申请日：1993-04-16

Applicant: Peter Pfiffner

Inventor： Peter Pfiffner

IPC: H04L27/24 ,  H04L27/10 ,  H03K7/08

CPC classification number: H04L27/24

Abstract: A method and apparatus for transmitting binary data trains of 0 and 1 data bits, or combinations of these data bits over a communications network. The data bits are converted into pulses whose polarity changes from pulse to pulse, so as to enable an optimal exploitation of the transmission channel with a low error rate. The pulses generated by an apparatus of the present invention have a signal shape that produces a minimum inter-symbol interference. Processing and evaluation of the transmitted pulses are performed by a processor, so that a minimal error rate is attainable even under unfavorable transmission conditions.

Abstract translation: 一种用于通过通信网络发送0和1个数据比特的二进制数据列或这些数据比特的组合的方法和装置。 数据位被转换成脉冲，脉冲的极性从脉冲变为脉冲，从而能够以低错误率对传输通道进行最佳的利用。 由本发明的装置产生的脉冲具有产生最小符号间干扰的信号形状。 发送脉冲的处理和评估由处理器执行，使得即使在不利的传输条件下也可以获得最小误码率。

公开(公告)号：US5581368A

公开(公告)日：1996-12-03

申请号：US487160

申请日：1995-06-07

Applicant: Josef Dirr

Inventor： Josef Dirr

IPC: G06T9/00 ,  H04L27/24 ,  H04N1/41 ,  H04N1/419 ,  H04N7/24 ,  H04N11/04 ,  H04N21/2383 ,  H04N21/438 ,  H04N1/415

CPC classification number: H04N21/2383 ,  G06T9/005 ,  H04L27/24 ,  H04N1/41 ,  H04N1/419 ,  H04N11/042 ,  H04N21/4382

Abstract: A coding of images and originals, for example, for telefax and color television, allows transmission time to be shortened, in particular in the case of black and white digital or numeric longitudinal coding. For that purpose, the same code words for black and white are provided also for different numbers or digits. As discriminating criterion, the input sequence of black and white is used. During coding of several successive white lines, transmission time can be further shortened in that the coded number of white lines is provided before or after the code word for the white line. During gray coding, transmission time is in particular reduced by subdividing the gray scales or binary code words, if necessary with deliberate redundancy, since in this case many characters occur successively and are then transmitted in the same way as the white lines. During color image transmission, transmission time is further reduced by code multiplexing and if necessary by QAM-based transmission, whereas in addition the PAM-coded information is D.C. biased. The sum alternating current thus varies in phases in the range of 90 degrees only.

Abstract translation: 图像和原稿的编码，例如用于传真和彩色电视，允许缩短传输时间，特别是在黑白数字或数字纵向编码的情况下。 为此，为不同的数字或数字提供黑白相同的代码字。 作为判别标准，使用黑白的输入序列。 在编码几个连续的白线时，可以进一步缩短传输时间，因为在白线的码字之前或之后提供白线的编码数。 在灰度编码期间，如果需要，通过细分灰度级或二进制码字，特别地减少传输时间，因为在这种情况下，许多字符连续出现，然后以与白线相同的方式发送。 在彩色图像传输期间，通过代码复用进一步减少传输时间，并且如果需要，通过基于QAM的传输，而PAM编码的信息另外是D.C.偏置的。 因此，总和交流电仅在90度的范围内变化。

公开(公告)号：US5103463A

公开(公告)日：1992-04-07

申请号：US575307

申请日：1990-08-30

Applicant: Rainald Schoeneberg

Inventor： Rainald Schoeneberg

IPC: H04L27/24

CPC classification number: H04L27/24

Abstract: A system and method for encoding and decoding a frequency-shift keyed data signal for transmission over a non-ideal communications channel that utilizes phase-coherently combined halfwave segments of sinewaves with a finite number of different frequencies and equal amplitudes. A stream of data characters is encoded into a transmit sequence {S(n)} of positive numbers which defines an ac signal of halfwave segments of sinewaves of fixed, preselected amplitude. The ac signal encoding the stream of data characters is transmitted over the communications channel and received as a perturbed ac signal. The received signal is identified by consecutively determining the time durations between peak values or between zero crossings of each segment yielding a receive sequence {E(n)} of positive numbers. All or parts of this receive sequence are then compared with each of a set of preselected, stored sequences, each representing a stream of none, one or more data characters. The actual stream of data characters transmitted is selected as the stream producing the smallest errors, within a preselected bound, in comparing the stored stream-representing sequences to all or parts of the receiver sequence.

Abstract translation: 一种用于编码和解码频移键控数据信号以在非理想通信信道上传输的系统和方法，其利用具有有限数量的不同频率和相等幅度的相位相干组合的正弦波的半波段。 数据字符流被编码成正数的发送序列{S（n）}，其定义固定预选幅度的正弦波的半波段的交流信号。 通过通信信道发送编码数据字符流的交流信号，作为扰动交流信号接收。 通过连续确定峰值之间的时间持续时间或每个段的过零点之间产生正数的接收序列{E（n）}来识别所接收的信号。 然后将该接收序列的全部或部分与一组预先选择的存储序列中的每一个进行比较，每个序列表示无一个，一个或多个数据字符的流。 在存储的流表示序列与接收器序列的全部或部分进行比较时，将所发送的数据字符的实际流选择为产生最小误差的流。

公开(公告)号：US3842403A

公开(公告)日：1974-10-15

申请号：US34231873

申请日：1973-03-16

Applicant: WARWICK ELECTRONICS INC

Inventor： KONOPKA J

IPC: H04B10/00 ,  H04L27/24 ,  H04Q1/00 ,  G08B13/18

CPC classification number: H04B10/00 ,  H04L27/24

Abstract: A control including a transmitter and a receiver for remotely operating a device wherein the receiver and transmitter are powered by alternating current power supplies having a known phase relationship. The system transmits a signal comprising a series of single polarity pulses having a known phase relationship to and derived from the output of the alternating current power supply and different receiver outputs are provided depending on the polarity of the transmitted pulses. The transmission may be by light radiation.

Abstract translation: 一种包括用于远程操作设备的发射器和接收器的控制器，其中接收器和发射器由具有已知相位关系的交流电源供电。 该系统将包括具有已知相位关系的一系列单极性脉冲的信号发送到交流电源的输出端，并根据发送脉冲的极性提供不同的接收器输出。 透射可以通过光辐射。

公开(公告)号：US3623075A

公开(公告)日：1971-11-23

申请号：US3623075D

申请日：1969-10-16

Applicant: MOTOROLA INC

Inventor： BENCH STEPHEN M ,  ROLLINS THOMAS J

IPC: H04L27/14 ,  H04L27/24

CPC classification number: H04L27/24 ,  H04L27/14

Abstract: Digital information to be decoded is transmitted over a voice band transmission medium as a sequence of half-cycles of tone of different frequencies, with different frequency tones being utilized for mark and space data bits. Only a half-cycle is required for each data bit with a phase reversal occurring at each data bit. The incoming signals are transformed into a sequence of zero crossings with the pulse interval time duration between these zero crossings being compared with a local frequency standard. At the end of each pulse interval, the decision of whether or not a mark or space has been received is determined in accordance with the count stored in a counter driven by the local frequency standard. The counter then is reset, storing a new count during the next half-cycle signal received.