公开(公告)号：US20180139499A1

公开(公告)日：2018-05-17

申请号：US15842107

申请日：2017-12-14

Applicant: Ibiquity Digital Corporation

Inventor： Russell Iannuzzelli

IPC: H04N21/44 ,  H04N21/439

CPC classification number: H04N21/44004 ,  H04H60/07 ,  H04H2201/183 ,  H04H2201/186 ,  H04N21/23406 ,  H04N21/4392

Abstract: An apparatus for controlling a data rate in a data client for a digital audio broadcasting system includes a buffer for storing data, a codec for coding data, and a control module for controlling a bit rate of the codec in response to a level of the data in the buffer. A method performed by the apparatus is also included.

公开(公告)号：US08891683B2

公开(公告)日：2014-11-18

申请号：US12310578

申请日：2007-08-30

Applicant: Naoki Nakajima ,  Kazuyoshi Inako ,  Masanori Ishida ,  Kazuo Koyama

Inventor： Naoki Nakajima ,  Kazuyoshi Inako ,  Masanori Ishida ,  Kazuo Koyama

IPC: H03K9/00 ,  H03J1/00 ,  H04H20/30 ,  H04H60/73 ,  H04H60/44

CPC classification number: H03J1/0075 ,  H04H20/30 ,  H04H60/44 ,  H04H60/73 ,  H04H2201/183

Abstract: A broadcast receiver suitable for receiving broadcast signals transferred by use of signal format of IBOC system. The broadcast receiver comprises a receiving means that holds information related to channels that can be acquired by a digital signal decoding process. If information related to a channel is to be used and is held by the information holding means, then it is used.

Abstract translation: 适用于接收使用IBOC系统的信号格式传送的广播信号的广播接收机。 广播接收机包括一个接收装置，用于保存与可以通过数字信号解码过程获得的信道有关的信息。 如果要使用与信道相关的信息并由信息保持装置保存，则使用它。

公开(公告)号：US08265585B2

公开(公告)日：2012-09-11

申请号：US12310583

申请日：2007-08-30

Applicant: Kazuyoshi Inako ,  Kazuo Koyama ,  Masanori Ishida ,  Naoki Nakajima

Inventor： Kazuyoshi Inako ,  Kazuo Koyama ,  Masanori Ishida ,  Naoki Nakajima

IPC: H04B1/10

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

Abstract: An broadcasting receiver suitable for receiving a broadcasting signal transmitted in an IBOC signal format, includes: a narrowband filtering means suitable for processing an analog broadcasting signal included in the broadcasting signal; a wideband filtering means suitable for processing a digital broadcasting signal included in the broadcasting signal; a demodulating means for demodulating the broadcasting signal; a signal level detecting means for detecting a level of the broadcasting signal; a digital determining means for determining whether the broadcasting signal includes digital broadcasting signal or not; and a filter switching means for switching filtering means for use in processing the broadcasting signal to be input to the demodulating means between the narrowband filtering means and the wideband filtering means, according to the level of the detected broadcasting signal, when the digital determining means determines that the broadcasting signal does not include the digital broadcasting signal.

Abstract translation: 适用于接收以IBOC信号格式发送的广播信号的广播接收机包括：适用于处理广播信号中包含的模拟广播信号的窄带滤波装置; 适用于处理广播信号中包含的数字广播信号的宽带滤波装置; 解调装置，用于解调广播信号; 信号电平检测装置，用于检测广播信号的电平; 数字确定装置，用于确定广播信号是否包括数字广播信号; 以及滤波器切换装置，用于当数字确定装置确定时，根据检测到的广播信号的电平，将滤波装置切换用于处理要输入到窄带滤波装置和宽带滤波装置之间的解调装置的广播信号 广播信号不包括数字广播信号。

公开(公告)号：US08138915B2

公开(公告)日：2012-03-20

申请号：US11984290

申请日：2007-11-15

Applicant: Marek Milbar

Inventor： Marek Milbar

IPC: G08B1/08

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：US08027419B2

公开(公告)日：2011-09-27

申请号：US11101795

申请日：2005-04-08

Applicant: Russell Iannuzzelli ,  Brian William Kroeger ,  Harvey Chalmers

Inventor： Russell Iannuzzelli ,  Brian William Kroeger ,  Harvey Chalmers

IPC: H04B1/10

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

Abstract: This invention provides a method of detecting time alignment of an analog audio signal and a digital audio signal in a hybrid radio system. The method comprises the steps of filtering the analog audio signal to produce a filtered analog audio signal, filtering the digital audio signal to produce a filtered digital audio signal, and using the filtered analog audio signal and the filtered digital audio signal to calculate a plurality of correlation coefficients, wherein the correlation coefficients are representative of time alignment between the analog audio signal and the digital audio signal. An apparatus for performing the method is also provided.

Abstract translation: 本发明提供了一种在混合无线电系统中检测模拟音频信号和数字音频信号的时间对准的方法。 该方法包括以下步骤：对模拟音频信号进行滤波以产生经滤波的模拟音频信号，对数字音频信号进行滤波以产生经滤波的数字音频信号，并使用滤波后的模拟音频信号和滤波后的数字音频信号来计算多个 相关系数，其中相关系数表示模拟音频信号和数字音频信号之间的时间对准。 还提供了一种用于执行该方法的装置。

公开(公告)号：US20110128996A1

公开(公告)日：2011-06-02

申请号：US12310578

申请日：2007-08-30

Applicant: Naoki Nakajima ,  Kazuyoshi Inako ,  Masanori Ishida ,  Kazuo Koyama

Inventor： Naoki Nakajima ,  Kazuyoshi Inako ,  Masanori Ishida ,  Kazuo Koyama

IPC: H04B1/00

CPC classification number: H03J1/0075 ,  H04H20/30 ,  H04H60/44 ,  H04H60/73 ,  H04H2201/183

Abstract: A broadcast receiver suitable for receiving broadcast signals transferred by use of signal format of IBOC system. The broadcast receiver comprises a receiving means that holds information related to channels that can be acquired by a digital signal decoding process. If information related to a channel is to be used and is held by the information holding means, then it is used.

Abstract translation: 适用于接收使用IBOC系统的信号格式传送的广播信号的广播接收机。 广播接收机包括一个接收装置，用于保存与可以通过数字信号解码过程获得的信道有关的信息。 如果要使用与信道相关的信息并由信息保持装置保存，则使用它。

公开(公告)号：US07822396B2

公开(公告)日：2010-10-26

申请号：US11808518

申请日：2007-06-11

Applicant: Osamu Mino

Inventor： Osamu Mino

IPC: H04B1/18

CPC classification number: H04B1/26 ,  H03G3/3068 ,  H04H40/45 ,  H04H2201/183 ,  H04H2201/186

Abstract: An object of the present invention is to provide a radio receiver and a method for detecting carrier waves which make it possible to detect carrier waves for an IBOC type hybrid broadcast reliably. A radio receiver for receiving carrier waves for hybrid broadcasts which are arranged so as to be adjacent to and located on both sides of carrier waves for analog broadcasts in frequency bands includes a tuner for tuning to a broadcast frequency, and a controller for setting a center frequency of shift frequency in a range where carrier waves for an analog broadcast can be detected and allowing the tuner to tune to the set shift frequency.

Abstract translation: 本发明的目的是提供一种用于检测载波的无线电接收机和方法，其可以可靠地检测IBOC型混合广播的载波。 一种用于接收用于混合广播的载波的无线电接收机，其包括用于调谐到广播频率的调谐器，以及用于设置中心的控制器，其被配置为邻近并位于用于频带中的模拟广播的载波的两侧， 在可以检测模拟广播的载波的范围内的移位频率的频率，并允许调谐器调谐到设定的移位频率。

公开(公告)号：US20100203855A1

公开(公告)日：2010-08-12

申请号：US12568062

申请日：2009-09-28

Applicant: Akinori Komiyama

Inventor： Akinori Komiyama

IPC: H04B1/18

CPC classification number: H04H40/18 ,  H04H2201/183 ,  H04H2201/186

Abstract: A reception apparatus includes: a local oscillation section; first and second frequency mixing sections that mix received radio waves from AM and FM broadcast stations with an output signal from the local oscillation section to produce first and second intermediate frequency signals, respectively; an amplitude limiting section that limits an amplitude of the first or second intermediate frequency signal to a predetermined amplitude, and detects an intensity of the radio wave and a frequency offset from the signal; a multipath detecting section that extracts an amplitude change component in the signal amplitude-limited by the amplitude limiting section; and a control section that supplies a control signal for fixing the frequency to the local oscillation section when the intensity of the radio wave from the AM broadcast station and the frequency offset fulfill predetermined criteria, and when the amplitude change component is equal to or lower than a predetermined level.

Abstract translation: 接收装置包括：本地振荡部分; 第一和第二频率混合部分，其将来自AM和FM广播站的接收的无线电波与来自本地振荡部分的输出信号分别混合以产生第一和第二中频信号; 振幅限制部，其将所述第一或第二中频信号的振幅限制为规定的振幅，并且检测所述无线电波的强度和所述信号的频率偏移; 多路径检测部分，其提取由所述限幅部分限幅的信号中的振幅变化分量; 以及控制部分，当来自AM广播电台的电波强度和频率偏移达到预定标准时，向本地振荡部分提供用于固定频率的控制信号，并且当振幅变化分量等于或低于 一个预定的水平。

公开(公告)号：US20090163137A1

公开(公告)日：2009-06-25

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

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.

Abstract translation: 公开了通过数字无线电广播传输来准备用于广播的数据的方法和系统，包括以下步骤：接收与要广播的节目内容的节目信息相对应的多个内容文件; 接收具有针对所述多个内容文件中的每一个的指针的索引文件，其中所述索引文件与第一逻辑地址相关联; 存储索引文件和多个内容文件; 调度所述索引文件和所述多个内容文件的广播旋转（其中所述索引文件被调度为相对于所选内容文件间歇地重复传输）; 以及根据广播旋转将索引文件和多个内容文件发送到导入器。

公开(公告)号：US20070293167A1

公开(公告)日：2007-12-20

申请号：US11583966

申请日：2006-10-18

Applicant: Vasant Shridhar ,  Mark Spellman ,  Nicolai Pavlov

Inventor： Vasant Shridhar ,  Mark Spellman ,  Nicolai Pavlov

IPC: H04B7/00

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

Abstract: A system that blends a hybrid radio signal may provide reduced audio content skipping and may determine an audio correlation between analog and digital signal components in the hybrid radio signal before blending from the analog signal component to the digital signal component. The system may reduce volume level transitions during blending by adjustment of blend and cross-fade variables, as well as setting a hysteresis mode to prevent undesirable sequential jumping from digital mode back to analog mode. The system also may compensate for digital AM frequency quality issues by adjustment of a filter bandwidth when the receiver blends an AM signal from analog to digital mode.

Abstract translation: 混合混合无线电信号的系统可以提供减少的音频内容跳过，并且可以在从模拟信号分量到数字信号分量混合之前确定混合无线电信号中的模拟和数字信号分量之间的音频相关性。 该系统可以通过调整混合和交叉渐变变量来减少混合期间的音量级别转换，以及设置滞后模式，以防止从数字模式回到模拟模式的不期望的顺序跳转。 当接收机将AM信号从模拟模式混合到一起时，该系统还可以通过调整滤波器带宽来补偿数字AM频率质量问题。