公开(公告)号：US07352817B2

公开(公告)日：2008-04-01

申请号：US10672441

申请日：2003-09-26

Applicant: Marek Milbar

Inventor： Marek Milbar

IPC: H04L25/00

CPC classification number: H03M13/2789 ,  H03M13/271 ,  H03M13/2732 ,  H03M13/276 ,  H04H2201/183 ,  H04H2201/186

Abstract: This invention provides a method for interleaving bits of a digital signal representative of data and/or audio in a digital audio broadcasting system, the method comprising the step of: writing a plurality of bits of the digital signal to a matrix; and reading the bits from the matrix, wherein at least one of the writing and reading steps follows a non-sequential addressing scheme. Apparatus for transmitting the interleaved bits, and apparatus for receiving and deinterleaving the bits are also provided.

Abstract translation: 本发明提供了一种用于在数字音频广播系统中交织表示数据和/或音频的数字信号的比特的方法，该方法包括以下步骤：将数字信号的多个比特写入矩阵; 以及从所述矩阵读取所述位，其中所述写入和读取步骤中的至少一个遵循非顺序寻址方案。 还提供了用于发送交错比特的装置，以及用于接收和解交织比特的装置。

公开(公告)号：US06985537B1

公开(公告)日：2006-01-10

申请号：US09396056

申请日：1999-09-15

Applicant: Marek Milbar

Inventor： Marek Milbar

IPC: H04L27/28 ,  H04L23/02

CPC classification number: H04L1/0071 ,  H04L27/2602

Abstract: An interleaving method and apparatus is disclosed for an in-band on-channel (IBOC) digital audio broadcasting (DAB) system. The disclosed interleaver method and apparatus utilize a convolutional interleaver having a row size equal to one OFDM symbol and a time span of arbitrary size. A structured memory block is utilized in the de-interleaver at the receiver having a row size of one OFDM symbol (the number of active sub-carriers in the applicable sub-band of the IBOC system). The self-synchronizing nature of the present invention permits a receiver in an OFDM-based IBOC system to sort the scrambled blocks and descramble the received symbols according to its own frame count, without regard to the frame count of the transmitter. The disclosed interleaver method and apparatus does not require interleaver synchronization between the transmitter and receiver. In one implementation, separate convolutional encoders and convolutional interleavers are applied to each sub-band in a multi-stream structure to provide independent error spreading for each sub-band.

Abstract translation: 公开了一种用于带内同频（IBOC）数字音频广播（DAB）系统的交织方法和装置。 所公开的交织器方法和装置利用具有等于一个OFDM符号的行大小和任意大小的时间跨度的卷积交织器。 在具有一个OFDM符号的行大小（IBOC系统的可应用子带中的活动子载波的数量）的接收机处的解交织器中使用结构化存储器块。 本发明的自同步特性允许基于OFDM的IBOC系统中的接收机对加扰块进行排序，并根据其自身的帧计数对接收的符号进行解扰，而不考虑发射机的帧数。 所公开的交织器方法和装置不需要发送器和接收器之间的交织器同步。 在一个实现中，单独的卷积编码器和卷积交织器以多流结构应用于每个子带，以为每个子带提供独立的误差扩展。

公开(公告)号：US06970685B2

公开(公告)日：2005-11-29

申请号：US10366886

申请日：2003-02-14

Applicant: Marek Milbar ,  Ashruf El-Dinary

Inventor： Marek Milbar ,  Ashruf El-Dinary

IPC: H04B1/28 ,  H04B1/06 ,  H04B7/00

CPC classification number: H04H20/30 ,  H04B1/28

Abstract: A method for processing a radio signal which may include a narrowband signal or a wideband signal or both, comprises the steps of receiving the radio signal, initially processing the radio signal using a narrowband filter, switching to a wideband filter for further processing of the radio signal, determining if the wideband signal is acquired, and if the wideband signal is not acquired, alternating between narrowband filter processing for a narrowband filter hold time and wideband filter processing for a wideband filter hold time, where the narrowband filter hold time is gradually increased until a predetermined maximum time limit is reached. If the wideband signal is acquired, the narrowband filter hold time can be set to a predetermined minimum time limit. Receivers which implement the method are also provided.

Abstract translation: 一种处理可能包括窄带信号或宽带信号或两者的无线电信号的方法包括以下步骤：接收无线电信号，使用窄带滤波器最初处理无线电信号，切换到宽带滤波器以进一步处理无线电 信号，确定是否获取宽带信号，并且如果没有获取宽带信号，则在窄带滤波器保持时间的窄带滤波处理和宽带滤波器保持时间的宽带滤波处理之间交替，其中窄带滤波器保持时间逐渐增加 直到达到预定的最大时限。 如果获取宽带信号，则可以将窄带滤波器保持时间设置为预定的最小时限。 还提供了实现该方法的接收器。

公开(公告)号：US08595748B1

公开(公告)日：2013-11-26

申请号：US12003315

申请日：2007-12-21

Applicant: Joseph P. Haggerty ,  Chinmay M. Shah ,  Marek Milbar ,  James C. Stekas

Inventor： Joseph P. Haggerty ,  Chinmay M. Shah ,  Marek Milbar ,  James C. Stekas

IPC: G06F9/44 ,  H04W4/00

CPC classification number: H04H20/00 ,  G06F9/546 ,  H04H2201/18 ,  H04W4/06 ,  H04W4/18

Abstract: Methods and systems for transmitting and receiving large objects via digital radio broadcast involve retrieving an object and an object description; assigning a unique identifier to the object; segmenting the object into a plurality of fragments; generating at least one long message having selected ones of the fragments and a long header including the unique identifier and the object description; generating at least one short message having selected ones of the fragments and a short header including the unique identifier; and communicating the at least the long message or the short message to a digital radio broadcast transmitter. In accordance with certain embodiments, reassembly of the object can begin with either a long message or a short message.

Abstract translation: 通过数字无线电广播发送和接收大对象的方法和系统包括检索对象和对象描述; 向对象分配唯一标识符; 将对象分割成多个片段; 生成具有所选片段的至少一个长消息和包括唯一标识符和对象描述的长标题; 生成至少一个具有所选片段的短消息和包含所述唯一标识符的短标题; 以及将所述至少所述长消息或所述短消息传送到数字无线电广播发射机。 根据某些实施例，对象的重组可以以长消息或短消息开始。

公开(公告)号：US20110026640A1

公开(公告)日：2011-02-03

申请号：US12805433

申请日：2010-07-30

Applicant: Marek Milbar

Inventor： Marek Milbar

IPC: H04L27/00

CPC classification number: G06F12/0607 ,  G06F2212/1028 ,  G06F2212/154 ,  G06F2212/174 ,  H03M13/2707 ,  H03M13/2785 ,  H03M13/6569 ,  H04B1/06 ,  H04H2201/18 ,  H04L27/2601 ,  H04L27/2649 ,  H04W52/0206 ,  Y02D70/164

Abstract: A method of block deinterleaving data received at a digital radio broadcast receiver is described. The method includes providing a block of memory having n×k addresses, wherein the block comprises a single table, receiving a digital radio broadcast signal at the receiver, and demodulating the digital radio broadcast signal into a plurality of interleaved data units. For at least one series of n×k data units a pointer step size is determined, and for each data unit in the series, an address in the block is calculated based on the pointer step size, and an output data unit is read from the block at the address, such that said output data units represent block deinterleaved data units. An input data unit from the plurality of interleaved data units is then written to the block at the address. Associated systems and computer readable storage media are presented.

Abstract translation: 描述了在数字无线电广播接收机处接收的数据块解交织数据的方法。 该方法包括提供具有n×k个地址的存储器块，其中该块包括单个表，在接收机处接收数字无线电广播信号，并将数字无线电广播信号解调为多个交错数据单元。 对于至少一系列n×k个数据单元，确定指针步长，并且对于串联中的每个数据单元，基于指针步长来计算块中的地址，并且从中读取输出数据单元 使得所述输出数据单元表示块去交织的数据单元。 然后，将来自多个交错数据单元的输入数据单元写入该地址处的块。 提出了相关系统和计算机可读存储介质。

公开(公告)号：US20090128323A1

公开(公告)日：2009-05-21

申请号：US11984290

申请日：2007-11-15

Applicant: Marek Milbar

Inventor： Marek Milbar

IPC: H04Q7/00

CPC classification number: G08B27/008 ,  H04H20/59 ,  H04H2201/183

Abstract: A method for rendering an alert message on a digital radio broadcast receiver is described. A digital radio broadcast signal is received at the digital radio broadcast receiver. Data corresponding to an alert message comprising type information for identifying a type of the alert message and message information is detected. If the type information satisfies a triggering condition for a type of alert message pre-selected by a user of the digital radio broadcast receiver, the message information is rendered at the digital radio broadcast receiver. A digital radio broadcast receiver that performs the method is also described.

Abstract translation: 描述了一种在数字无线电广播接收机上呈现警报消息的方法。 在数字无线电广播接收机处接收数字无线电广播信号。 检测对应于包括用于识别警报消息的类型的类型信息和消息信息的警报消息的数据。 如果类型信息满足由数字无线电广播接收机的用户预先选择的一种警报消息的触发条件，则在数字无线电广播接收机处呈现消息信息。 还描述了执行该方法的数字无线电广播接收机。

公开(公告)号：US07305043B2

公开(公告)日：2007-12-04

申请号：US10465443

申请日：2003-06-19

Applicant: Marek Milbar ,  James C. Stekas

Inventor： Marek Milbar ,  James C. Stekas

IPC: H04L27/00

CPC classification number: H04L25/03866 ,  H04H20/30 ,  H04H20/95 ,  H04H2201/183 ,  H04H2201/20 ,  H04L27/2601

Abstract: A method for digital audio broadcasting comprising the steps of receiving a plurality of data bits to be transmitted, formatting the plurality of data bits into a plurality of protocol data units, inserting header bits at spaced locations within the protocol data units, and using the protocol data units to modulate a plurality of carriers to produce an output signal. The individual header bits can be positioned at evenly spaced locations in the protocol data units. A first one of the header bits can be offset from an end of the protocol data unit. A method of receiving the digital audio broadcasting signal the transmitters and receivers that operate in accordance with the methods are also provided.

Abstract translation: 一种用于数字音频广播的方法，包括以下步骤：接收要发送的多个数据位，将所述多个数据位格式化成多个协议数据单元，在所述协议数据单元内的间隔位置插入报头位，以及使用所述协议 数据单元来调制多个载波以产生输出信号。 各个标题位可以位于协议数据单元中均匀间隔的位置。 标题位中的第一个可以从协议数据单元的末尾偏移。 还提供了一种接收数字音频广播信号的方法，所述信号是根据所述方法操作的发射机和接收机。

公开(公告)号：US06807241B1

公开(公告)日：2004-10-19

申请号：US09396058

申请日：1999-09-15

Applicant: Marek Milbar ,  Mohammad Hossein Zarrabizadeh

Inventor： Marek Milbar ,  Mohammad Hossein Zarrabizadeh

IPC: H03D100

CPC classification number: H04L27/266 ,  H04L27/2659 ,  H04L27/2675

Abstract: A method and apparatus are disclosed for frequency offset estimation in a hybrid in-band on-channel (HIBOC) digital audio broadcasting (DAB) system. The frequency offset estimation algorithm first determines the coarse frequency offset, in terms of integer number of OFDM bin separations between an actual and measured location of a correlated peak, followed by estimation and tracking of the partial (residual) offset in a continuous fashion. A frame is correlated at a first frequency, and then the frequency is shifted by a predefined amount, such as half of the inter-bin frequency amount, &Dgr;f, before correlating again. The measurement with the highest peak of the plurality of frequency values is utilized to obtain the course frequency offset estimate. The partial frequency offset estimation algorithm utilizes phase information contained in reference frequency points in the frequency domain. The phase rotation of the reference vector is proportional to the frequency error, and the frequency error is extracted and filtered in the time domain. The initial partial frequency offset estimation is corrected and used for continuous frequency tracking. Following the course frequency offset estimation, the unmodulated pilot bins (and all other bins), are within at least half the of the OFDM bin separation. In the presence of a frequency offset, the complex bins start rotating. The rate of the rotation is a function of the extent of the partial frequency offset. The change in phase from one frame to the next is proportional to the rate of rotation, and the sign of the rotation indicates the direction of the shift.

Abstract translation: 公开了用于混合带内同频（HIBOC）数字音频广播（DAB）系统中的频率偏移估计的方法和装置。 频率偏移估计算法首先根据相关峰值的实际位置和测量位置之间的OFDM分区的整数的数量来确定粗略的频率偏移，然后以连续的方式估计和跟踪部分（残余）偏移量。 帧以第一频率相关，然后在再次关联之前将频率偏移预定义的量，诸如两个频率间隔量的一半，Deltaf。 利用具有多个频率值的最高峰值的测量来获得路线频率偏移估计。 部分频率偏移估计算法利用包含在频域参考频点中的相位信息。 参考矢量的相位旋转与频率误差成比例，并且在时域中提取和滤波频率误差。 初始部分频偏估计被校正并用于连续频率跟踪。 在课程频率偏移估计之后，未调制的导频信道（和所有其他分组）在至少OFDM频分复用分离的一半之内。 在存在频率偏移的情况下，复合箱开始旋转。 旋转速率是部分频率偏移程度的函数。 从一帧到下一帧的相位变化与旋转速率成比例，旋转的符号表示偏移的方向。