公开(公告)号：US07873120B2

公开(公告)日：2011-01-18

申请号：US12685378

申请日：2010-01-11

Applicant: Brian William Kroeger

Inventor： Brian William Kroeger

IPC: H04L27/36

CPC classification number: H04L1/006 ,  H04B1/406 ,  H04H20/30 ,  H04H40/18 ,  H04H60/12 ,  H04H2201/186 ,  H04L1/0069 ,  H04L1/0071 ,  H04L27/2601 ,  H04L27/2602 ,  H04L27/3405

Abstract: A method of broadcasting an AM compatible digital audio broadcasting signal includes: producing an analog modulated carrier signal centrally positioned in a radio channel, wherein the analog modulated carrier signal is modulated by an analog signal, producing a plurality of digitally modulated subcarrier signals in the radio channel, wherein the digitally modulated subcarrier signals are modulated using complementary pattern-mapped trellis code modulation (CPTCM) including a code mapped to overlapping partitions including an upper main partition, a lower main partition, an upper backup partition and a lower backup partition, and a non-overlapping tertiary partition, and transmitting the analog modulated carrier signal and the plurality of digitally modulated subcarrier signals. Transmitters that broadcast the signal and receivers that receive the signal, and the reception method are also included.

Abstract translation: 一种广播AM兼容数字音频广播信号的方法包括：产生中心位于无线电信道中的模拟调制载波信号，其中模拟调制载波信号由模拟信号调制，在无线电中产生多个经数字调制的子载波信号 信道，其中使用包括映射到包括上主分区，下主分区，上备份分区和下备份分区的重叠分区的代码的互补模式映射网格码调制（CPTCM）来调制数字调制副载波信号，以及 不重叠的三级分区，并且发送模拟调制载波信号和多个数字调制副载波信号。 广播接收信号的信号的发射机和接收方法也包括在内。

公开(公告)号：US20100111225A1

公开(公告)日：2010-05-06

申请号：US12685378

申请日：2010-01-11

Applicant: Brian William Kroeger

Inventor： Brian William Kroeger

IPC: H04L27/36 ,  H04L27/04

CPC classification number: H04L1/006 ,  H04B1/406 ,  H04H20/30 ,  H04H40/18 ,  H04H60/12 ,  H04H2201/186 ,  H04L1/0069 ,  H04L1/0071 ,  H04L27/2601 ,  H04L27/2602 ,  H04L27/3405

Abstract: A method of broadcasting an AM compatible digital audio broadcasting signal includes: producing an analog modulated carrier signal centrally positioned in a radio channel, wherein the analog modulated carrier signal is modulated by an analog signal, producing a plurality of digitally modulated subcarrier signals in the radio channel, wherein the digitally modulated subcarrier signals are modulated using complementary pattern-mapped trellis code modulation (CPTCM) including a code mapped to overlapping partitions including an upper main partition, a lower main partition, an upper backup partition and a lower backup partition, and a non-overlapping tertiary partition, and transmitting the analog modulated carrier signal and the plurality of digitally modulated subcarrier signals. Transmitters that broadcast the signal and receivers that receive the signal, and the reception method are also included.

Abstract translation: 一种广播AM兼容数字音频广播信号的方法包括：产生中心位于无线电信道中的模拟调制载波信号，其中模拟调制载波信号由模拟信号调制，在无线电中产生多个经数字调制的子载波信号 信道，其中使用包括映射到包括上主分区，下主分区，上备份分区和下备份分区的重叠分区的代码的互补模式映射网格码调制（CPTCM）来调制数字调制副载波信号，以及 不重叠的三级分区，并且发送模拟调制载波信号和多个数字调制副载波信号。 广播接收信号的信号的发射机和接收方法也包括在内。

公开(公告)号：US20070291876A1

公开(公告)日：2007-12-20

申请号：US11454997

申请日：2006-06-16

Applicant: Vasant Shridhar ,  Mark Spellman ,  Nicolai Pavlov

Inventor： Vasant Shridhar ,  Mark Spellman ,  Nicolai Pavlov

IPC: H04L27/00

CPC classification number: H04H40/18 ,  H04H20/30 ,  H04H60/12 ,  H04H2201/183 ,  H04H2201/186

Abstract: A system for blending a hybrid radio signal provides reduced volume level transitions during blending from an analog component of the hybrid signal to the digital component by adjusting blend and cross-fade variables, as well as setting a hysteresis mode to prevent undesirable jumping from digital mode back to analog mode sequentially. The system also compensates for digital AM frequency quality issues by adjusting a filter bandwidth when the transceiver blends the AM signal from analog to digital mode.

Abstract translation: 用于混合混合无线电信号的系统通过调整混合和交叉衰减变量来提供从混合信号的模拟分量到数字分量的混合期间的减小的体积电平转换，以及设置滞后模式以防止不期望的从数字模式跳跃 依次回到模拟模式。 当收发器将AM信号从模拟模式混合到一起时，该系统还通过调整滤波器带宽来补偿数字AM频率质量问题。

公开(公告)号：US20040064208A1

公开(公告)日：2004-04-01

申请号：US10259073

申请日：2002-09-27

Inventor： Deepen Sinha ,  James Tracey

IPC: H04H005/00 ,  G06F017/00

CPC classification number: H04H60/27 ,  H04H20/30 ,  H04H2201/183 ,  H04H2201/186 ,  H04H2201/20

Abstract: A dual-mode receiver that functions both as a digital audio broadcast receiver and a solid-state digital audio content player is described. In a nullradionull mode, the receiver is able to: receive a digital audio bitstream, decode the received bitstream, store or render the decoded bitstream either based on an input from a user or a pre-programmed instruction from a user. In a nullplaynull mode, the receiver is able to access the stored digital audio content, or extract stored digital audio content from a compact media device (e.g., compact flash memory) that is interfaced with the receiver.

Abstract translation: 描述了同时用作数字音频广播接收机和固态数字音频内容播放器的双模式接收机。 在“无线电”模式中，接收机能够：接收数字音频比特流，解码接收到的比特流，基于来自用户的输入或来自用户的预编程指令来存储或呈现解码的比特流。 在“播放”模式中，接收机能够访问存储的数字音频内容，或从与接收器接口的小型媒体设备（例如，紧凑型闪存）中提取存储的数字音频内容。

公开(公告)号：US20040063399A1

公开(公告)日：2004-04-01

申请号：US10672441

申请日：2003-09-26

Inventor： Marek Milbar

IPC: H04H001/00

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：US5859876A

公开(公告)日：1999-01-12

申请号：US671252

申请日：1996-06-27

Applicant: Mark J. Dapper ,  Michael J. Geile ,  Barry Walter Carlin

Inventor： Mark J. Dapper ,  Michael J. Geile ,  Barry Walter Carlin

IPC: H03C1/52 ,  H04H20/30 ,  H04H20/36 ,  H04L27/04 ,  H03C1/00 ,  H04L23/02 ,  H04N7/24

CPC classification number: H03C1/52 ,  H04H20/36 ,  H04H20/30 ,  H04H2201/186

Abstract: A digital signal transmission system is provided which minimizes the AM signal envelope distortion caused by multiple digitally modulated carriers in the same band as the AM signal. The system transmits an amplitude modulated signal. Digital carriers for the digital signal are placed both above and below the frequency of the analog AM carrier. Certain digital carriers that are above the frequency of the analog AM carrier have an associated digital carrier that is at an equal frequency offset below the analog AM carrier. The data and modulation placed on the upper digital carrier and its counterpart are such that the signal resulting from their addition has no component that is in-phase with the analog AM carrier. The signal envelope is predistorted to counteract the distortion added by the digital carriers.

Abstract translation: 提供一种数字信号传输系统，其最小化由与AM信号相同的频带中的多个数字调制载波引起的AM信号包络失真。 系统发送振幅调制信号。 用于数字信号的数字载波被放置在模拟AM载波的频率之上和之下。 高于模拟AM载波频率的某些数字载波具有与模拟AM载波相同频率偏移的相关联的数字载波。 放置在上数字载波及其对应物上的数据和调制使得由它们的相加产生的信号没有与模拟AM载波同相的分量。 信号包络是预失真的，以抵消由数字载体添加的失真。

公开(公告)号：US5703954A

公开(公告)日：1997-12-30

申请号：US604199

申请日：1996-02-20

Applicant: Mark J. Dapper ,  Barry W. Carlin ,  Michael J. Geile

Inventor： Mark J. Dapper ,  Barry W. Carlin ,  Michael J. Geile

IPC: H04H20/26 ,  H04H20/33 ,  H04H40/18 ,  H04H5/00

CPC classification number: H04H40/18 ,  H04H20/22 ,  H04H20/26 ,  H04H20/33 ,  H04H2201/186

Abstract: A system and method are provided for reducing perceived distortion in an output audio signal derived from an amplitude modulated compatible digital broadcast signal having a monophonic portion and a stereo portion. The stereo portion of this signal is demodulated to produce a demodulated stereo signal and the monophonic portion of the signal is demodulated to produce a demodulated monophonic signal. The noise in the demodulated stereo signal is measured and an estimate of the signal-to-noise ratio is derived. This estimated signal-to-noise ratio is compared with a threshold level which is set at the minimum acceptable signal quality for the stereo signal. Based upon the estimated signal-to-noise ratio, a switch directs either the monophonic derived audio output or the stereo derived audio output as the system output signal.

Abstract translation: 提供了一种系统和方法，用于减少从具有单声道部分和立体声部分的幅度调制兼容数字广播信号导出的输出音频信号中的感知失真。 该信号的立体声部分被解调以产生解调的立体声信号，并且信号的单声道部分被解调以产生解调的单声道信号。 测量解调立体声信号中的噪声，并推导出信噪比的估计。 将该估计的信噪比与对于立体声信号设置为最小可接受信号质量的阈值电平进行比较。 基于估计的信噪比，开关将单声道导出音频输出或立体声导出音频输出指导为系统输出信号。

公开(公告)号：US08983365B2

公开(公告)日：2015-03-17

申请号：US12003323

申请日：2007-12-21

Applicant: Armond R. Capparelli ,  Joseph F. D'Angelo ,  Joseph P. Haggerty ,  Steven A. Johnson ,  Bei Li ,  Lia Meller ,  Marek Milbar ,  Jordan Scott ,  Chinmay M. Shah ,  Kun Wang ,  Girish K. Warrier ,  Christopher R. Gould

Inventor： Armond R. Capparelli ,  Joseph F. D'Angelo ,  Joseph P. Haggerty ,  Steven A. Johnson ,  Bei Li ,  Lia Meller ,  Marek Milbar ,  Jordan Scott ,  Chinmay M. Shah ,  Kun Wang ,  Girish K. Warrier ,  Christopher R. Gould

IPC: H04H40/00 ,  H04H60/06 ,  H04H60/07 ,  H04H60/72 ,  H04H20/16

CPC classification number: H04H60/06 ,  H04H20/16 ,  H04H60/07 ,  H04H60/72 ,  H04H2201/183 ,  H04H2201/186

Abstract: Methods and systems for preparing data for broadcast via digital radio broadcast transmission is disclosed comprising the steps of receiving a plurality of content files corresponding to programming information for program content to be broadcast; receiving an index file having a pointer for each of the plurality of content files, wherein the index file is associated with a first logical address; storing the index file and the plurality of content files; scheduling a broadcast rotation of the index file and the plurality of content files (wherein the index file is scheduled for repeated transmission intermittently relative to selected ones of the content files); and transmitting the index file and the plurality of content files to an importer in accordance with the broadcast rotation.

公开(公告)号：US07933368B2

公开(公告)日：2011-04-26

申请号：US11757574

申请日：2007-06-04

Applicant: Paul J. Peyla ,  Brian William Kroeger

Inventor： Paul J. Peyla ,  Brian William Kroeger

IPC: H04L27/08

CPC classification number: H04L5/06 ,  H04H2201/186 ,  H04L1/20

Abstract: A method for detecting a digital radio signal includes the steps of receiving the digital radio signal including a series of symbols, developing a correlation waveform having a peak that corresponds to a symbol boundary, normalizing the correlation waveform, and calculating a peak value of the normalized correlation waveform, wherein the peak value represents the quality of the received digital radio signal. A receiver that performs the method is also provided.

Abstract translation: 一种用于检测数字无线电信号的方法包括以下步骤：接收包括一系列符号的数字无线电信号，产生具有对应于符号边界的峰值的相关波形，对相关波形进行归一化，以及计算正规化 相关波形，其中峰值表示所接收的数字无线电信号的质量。 还提供了执行该方法的接收器。

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。