公开(公告)号：US20190123841A1

公开(公告)日：2019-04-25

申请号：US15790785

申请日：2017-10-23

Applicant: Wheatstone Corporation

Inventor： Jeffrey Allan Keith

IPC: H04H20/18 ,  H04H20/72 ,  H04H20/48

CPC classification number: H04H20/18 ,  H04H20/48 ,  H04H20/72 ,  H04H2201/183

Abstract: An audio processor includes a detector configured to determine a correlation of first and second data corresponding to an analog FM component and an HD FM component, respectively, of a broadcast RF signal. A signal processor is configured to receive an input audio signal, to generate an analog FM audio signal and an HD FM audio signal therefrom and to control a relative timing of the analog FM audio signal and the HD FM audio signal based on the determined correlation. The signal processor may include a multiband limiter configured to generate a multiband limited audio signal responsive to the input audio signal, an HD FM audio processor configured to generate the HD FM audio signal responsive to the multiband limited audio signal, and an analog FM audio processor configured to generate the analog FM audio signal responsive to the multiband limited audio signal and to delay the analog FM audio signal responsive to the timing control signal.

公开(公告)号：US20170169832A1

公开(公告)日：2017-06-15

申请号：US14966716

申请日：2015-12-11

Applicant: iBiquity Digital Corporation

Inventor： Gabriel Olochwoszcz ,  Ashwini Pahuja

IPC: G10L19/16 ,  G10L19/24 ,  H04B1/16 ,  G10L19/008

CPC classification number: G10L19/167 ,  G10L19/008 ,  G10L19/24 ,  H04B1/16 ,  H04H20/30 ,  H04H60/12 ,  H04H2201/183

Abstract: A method of processing a digital radio broadcast signal includes: (a) determining a plurality of current correlation sample values representative of a time delay between samples in an analog audio sample stream and samples in a digital audio sample stream; (b) determining a current inversion status; (c) updating a delay history and an inversion status history; (d) checking the current correlation sample values for consistency with a first confidence threshold; (e) if consistency is found in step (d), determining if each of a first plurality of values in the delay history is consistent within a predetermined range of the current correlation sample values; (f) if consistency is found in step (e), determining if a value in the inversion status history is consistent with the current inversion status; and (g) if the consistency is found in step (f), allowing blending of an output to the digital audio sample stream.

公开(公告)号：US09178548B1

公开(公告)日：2015-11-03

申请号：US14257286

申请日：2014-04-21

Applicant: iBiquity Digital Corporation

Inventor： Brian W. Kroeger ,  Paul J. Peyla

IPC: H04B1/10

CPC classification number: H04B1/1036 ,  H04B1/109 ,  H04B2001/1045 ,  H04B2001/1063 ,  H04H20/31 ,  H04H2201/183

Abstract: A method for processing a radio signal includes: receiving an FM in-band on-channel radio signal including a plurality of digitally modulated subcarriers in upper and lower sidebands; sampling the FM in-band on-channel radio signal to produce an input signal including complex digital samples of a combination of a desired one the upper and lower sidebands and an FM interferer; removing FM interferer components from the first signal by notch filtering to produce a notch-filtered signal; weighting the notch-filtered signal to produce a weighted notch-filtered signal; using a parametric filter to filter the input signal to produce a parametric-filtered input signal; and combining the weighted notch-filtered signal and the parametric-filtered input signal to produce an output signal. A radio receiver that implements the method is also included.

Abstract translation: 一种处理无线电信号的方法包括：在上边带和下边带中接收包括多个数字调制子载波的FM带内通道无线电信号; 对FM带内通道无线电信号进行采样以产生包括上边带和下边带期望的一个组合的复数数字采样和FM干扰源的输入信号; 通过陷波滤波从第一信号中去除FM干扰源分量以产生陷波滤波信号; 加权陷波滤波信号以产生加权陷波滤波信号; 使用参数滤波器对输入信号进行滤波以产生参数滤波的输入信号; 以及组合加权陷波滤波信号和参数滤波输入信号以产生输出信号。 还包括实现该方法的无线电接收机。

公开(公告)号：US08121566B2

公开(公告)日：2012-02-21

申请号：US12310614

申请日：2007-08-30

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

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

IPC: H04B1/18

CPC classification number: H04H40/18 ,  H04H20/30 ,  H04H60/43 ,  H04H2201/183

Abstract: A broadcasting receiver suitable for receiving broadcasting signal transmitted with signal format is provided in which carrier wave is allocated in a frequency channel with certain frequency offset and signal intensity, which comprises: an information acquiring means for acquiring information related to the frequency channel in seek; and a station existence determining means for determining whether the frequency channel is station-existent or not based on information acquired by the information acquiring means; and wherein, the information acquiring means acquires information for receiving intensity of carrier wave and information for frequency offset.

Abstract translation: 提供一种适用于接收以信号格式发送的广播信号的广播接收机，其中载波在具有特定频率偏移和信号强度的频道中分配，其包括：信息获取装置，用于获取与寻道中的频道相关的信息; 以及站存在确定装置，用于基于由所述信息获取装置获取的信息来确定所述频道是否存在; 并且其中，所述信息获取装置获取用于接收载波强度的信息和用于频率偏移的信息。

公开(公告)号：US20100227579A1

公开(公告)日：2010-09-09

申请号：US12310596

申请日：2007-08-30

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

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

IPC: H04B1/18

CPC classification number: H03J1/0091 ,  H04H20/30 ,  H04H20/89 ,  H04H40/18 ,  H04H60/41 ,  H04H2201/183

Abstract: A broadcasting receiver suitable for receiving a broadcasting signal transmitted in an IBOC signal format, comprises: a channel seek directing means for directing to start a channel seeking operation that selects selectable channel in an order of frequency; a channel seek controlling means for starting and controlling the channel seeking operation in accordance with the direction of the channel seek directing means; and a multichannel determining means for determining whether a selected frequency channel is providing multichannel digital broadcasting or not; and wherein the channel seek controlling means selects a next subchannel in an order of identification code before searching for the next frequency channel, if it is determined by the multichannel determining means that the selected frequency channel is providing the multichannel digital broadcasting.

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：信道寻道引导装置，用于引导以频率顺序选择可选频道的频道搜索操作; 频道搜索控制装置，用于根据频道搜索引导装置的方向启动和控制频道搜索​​操作; 以及多通道确定装置，用于确定所选择的频道是否正在提供多声道数字广播; 并且其中，如果由所述多通道确定装置确定所选择的频道正在提供所述多声道数字广播，则所述频道搜索控制装置以搜索下一个频道之前的识别码的顺序选择下一个子信道。

公开(公告)号：US20100210228A1

公开(公告)日：2010-08-19

申请号：US12310614

申请日：2007-08-30

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

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

IPC: H04B1/18

CPC classification number: H04H40/18 ,  H04H20/30 ,  H04H60/43 ,  H04H2201/183

Abstract: A broadcasting receiver suitable for receiving broadcasting signal transmitted with signal format is provided in which carrier wave is allocated in a frequency channel with certain frequency offset and signal intensity, which comprises: an information acquiring means for acquiring information related to the frequency channel in seek; and a station existence determining means for determining whether the frequency channel is station-existent or not based on information acquired by the information acquiring means; and wherein, the information acquiring means acquires information for receiving intensity of carrier wave and information for frequency offset.

Abstract translation: 提供一种适用于接收以信号格式发送的广播信号的广播接收机，其中载波在具有特定频率偏移和信号强度的频道中分配，其包括：信息获取装置，用于获取与寻道中的频道相关的信息; 以及站存在确定装置，用于基于由所述信息获取装置获取的信息来确定所述频道是否存在; 并且其中，所述信息获取装置获取用于接收载波强度的信息和用于频率偏移的信息。

公开(公告)号：US20100056043A1

公开(公告)日：2010-03-04

申请号：US11962752

申请日：2007-12-21

Applicant: Rodney Burke ,  Steven Andrew Johnson ,  Joseph F. D'Angelo

Inventor： Rodney Burke ,  Steven Andrew Johnson ,  Joseph F. D'Angelo

IPC: H04H20/71 ,  H04L9/32

CPC classification number: H04H60/07 ,  H04H20/28 ,  H04H60/14 ,  H04H60/23 ,  H04H60/73 ,  H04H2201/183

Abstract: A service registry for a radio broadcasting system includes a memory for storing information relating to services to be provided over the broadcasting system, a processor coupled to the memory, and a core interface for exchanging messages between the processor and a plurality of users, the processor being programmed to retrieve the information from the memory in response to the messages received on the interface, and to output the retrieved information to an importer. A method of broadcasting and a broadcasting system are also provided.

Abstract translation: 用于无线电广播系统的服务注册表包括用于存储与要在广播系统上提供的服务有关的信息的存储器，耦合到存储器的处理器和用于在处理器和多个用户之间交换消息的核心接口，处理器 被编程为响应于接口上接收到的消息从存储器检索信息，并将检索到的信息输出到进口商。 还提供了广播方法和广播系统。

公开(公告)号：US07623890B2

公开(公告)日：2009-11-24

申请号：US11106532

申请日：2005-04-15

Applicant: Soichi Nagano ,  Hiroyuki Nagahama

Inventor： Soichi Nagano ,  Hiroyuki Nagahama

IPC: H04M1/00

CPC classification number: H04B1/123 ,  H04B1/1638 ,  H04H20/30 ,  H04H40/18 ,  H04H2201/183 ,  H04L1/004

Abstract: A receiver accepts a digital signal having an upper side digital signal located in a higher frequency range on a frequency axis than an analog signal, and a lower side digital signal located in a lower frequency range on the frequency axis than the analog signal. A BPF (15) allows the analog signal to pass therethrough and a BPF (16) allows the analog signal and the digital signal to pass therethrough. BPFs (18) and (19) accept the output of the BPF (16) and output the upper side digital signal and the lower side digital signal, respectively. A digital receive level determining unit (20) and a selection SW (17) select either of the outputs of the BPFs (15) and (16) according to the receive levels of the upper side digital signal and the lower side digital signal, and output the selected output as a selected signal. The receiver then demodulates this selected signal.

Abstract translation: 接收器接收数字信号，该数字信号具有位于频率轴上比模拟信号更高的频率范围的上侧数字信号，以及位于比模拟信号频率低的频率范围内的较低频率范围的数字信号。 BPF（15）允许模拟信号通过，BPF（16）允许模拟信号和数字信号通过。 BPF（18）和（19）分别接受BPF（16）的输出并输出上侧数字信号和下侧数字信号。 数字接收电平确定单元（20）和选择SW（17）根据上侧数字信号和下侧数字信号的接收电平选择BPF（15）和（16）的输出之一，以及 输出选定的输出作为选择的信号。 接收机然后解调该选择的信号。

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：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。