METHOD FOR IMPROVING AUDIO ACQUISITION TIME BY NASCENT SIGNAL CACHING

    公开(公告)号:US20240267142A1

    公开(公告)日:2024-08-08

    申请号:US18141733

    申请日:2023-05-01

    IPC分类号: H04H40/18 H04H20/33

    摘要: A method improves audio acquisition time by nascent signal caching. The receiver system includes the processor which contains the ASRC (Arbitrary Sample Rate Converter), demodulator, channel splitter, channel decoder and middleware & application along with the secondary storage system. The nascent digital broadcast radio signal after the sample rate conversion is cached in a secondary storage and given as input to the demodulator. The demodulator starts the demodulation process over the received signal by utilizing default channel parameters and detects the channel parameters of the received signal. If the default channel parameters are different from the detected channel parameters, the demodulator starts the re-demodulation process with the detected channel parameters over the nascent digital signal cached in the secondary storage, instead of waiting for a subsequently transmitted signal, thereby improving the audio acquisition time.

    Content linking multicast streaming for broadcast radio

    公开(公告)号:US12009909B2

    公开(公告)日:2024-06-11

    申请号:US17478294

    申请日:2021-09-17

    发明人: Dave Casey

    IPC分类号: H04H20/06 H04W72/30

    摘要: Embodiments presented herein are directed to “content linking multicast streaming” The embodiments connect a listener to over-the-air (OTA) broadcast radio content using an Internet Protocol (IP) multicast stream of the broadcast radio content when, for example, (i) a traditional broadcast radio receiver is not available, or (ii) an OTA broadcast radio signal that carries the content is not available. For example, when recovery of the OTA broadcast radio signal by a car radio is not possible because of poor reception or because the car radio is not configured with a suitable broadcast radio tuner, the embodiments generate a link to a multicast stream of the OTA broadcast radio content (also referred to as a “multicast broadcast radio stream” or simply a “multicast stream”), and provide the link to the car radio. The car radio can then access the multicast stream of the OTA broadcast radio content using the link.

    DARC signal demodulation circuit arrangement and method for operating same

    公开(公告)号:US09729365B2

    公开(公告)日:2017-08-08

    申请号:US15123057

    申请日:2015-02-02

    申请人: Robert Bosch GmbH

    发明人: Detlev Nyenhuis

    摘要: A DARC signal demodulation circuit assemblage for recovering a DARC signal (DARC data) from an FM multiplex transmission signal includes: a pilot tone regulation circuit to obtain first and second mutually orthogonal oscillation synchronous with a stereo pilot tone encompassed by the FM multiplex transmission signal; a frequency quadruplication section for obtaining third and fourth mutually orthogonal oscillation having a frequency quadrupled as to the stereo pilot tone; a first multiplication section for obtaining a first multiplication signal from the FM multiplex transmission signal and from the third oscillation; a second multiplication section for obtaining a second multiplication signal from the FM multiplex transmission signal and from the fourth oscillation; first/second low-pass filters for obtaining first/second DARC signal components by low-pass filtration of the first and second multiplication signals; and an FM demodulation section for obtaining the DARC signal from a frequency demodulation of the first/second DARC signal components.

    DARC SIGNAL DEMODULATION CIRCUIT ARRANGEMENT AND METHOD FOR OPERATING SAME
    5.
    发明申请
    DARC SIGNAL DEMODULATION CIRCUIT ARRANGEMENT AND METHOD FOR OPERATING SAME 有权
    DARC信号解调电路布置及其操作方法

    公开(公告)号:US20160373280A1

    公开(公告)日:2016-12-22

    申请号:US15123057

    申请日:2015-02-02

    申请人: ROBERT BOSCH GMBH

    发明人: Detlev NYENHUIS

    IPC分类号: H04L27/227 H04B1/16

    摘要: A DARC signal demodulation circuit assemblage for recovering a DARC signal (DARC data) from an FM multiplex transmission signal includes: a pilot tone regulation circuit to obtain first and second mutually orthogonal oscillation synchronous with a stereo pilot tone encompassed by the FM multiplex transmission signal; a frequency quadruplication section for obtaining third and fourth mutually orthogonal oscillation having a frequency quadrupled as to the stereo pilot tone; a first multiplication section for obtaining a first multiplication signal from the FM multiplex transmission signal and from the third oscillation; a second multiplication section for obtaining a second multiplication signal from the FM multiplex transmission signal and from the fourth oscillation; first/second low-pass filters for obtaining first/second DARC signal components by low-pass filtration of the first and second multiplication signals; and an FM demodulation section for obtaining the DARC signal from a frequency demodulation of the first/second DARC signal components.

    摘要翻译: 用于从FM多路传输信号恢复DARC信号(DARC数据)的DARC信号解调电路组件包括:导频音调节电路,用于获得与由FM多路传输信号包围的立体声导频音同步的第一和第二相互正交的振荡; 频率四重部分,用于获得频率为立体声导频音的四倍的第三和第四相互正交的振荡; 第一乘法部分,用于从FM多路传输信号和第三振荡获得第一相乘信号; 第二乘法部分,用于从FM多路传输信号和第四振荡获得第二乘法信号; 第一/第二低通滤波器,用于通过第一和第二相乘信号的低通滤波获得第一/第二DARC信号分量; 以及FM解调部分,用于从第一/第二DARC信号分量的频率解调获得DARC信号。

    DEVICE AND METHOD FOR REPRODUCING DIGITAL RECEIVER SIGNALS
    6.
    发明申请
    DEVICE AND METHOD FOR REPRODUCING DIGITAL RECEIVER SIGNALS 审中-公开
    用于复制数字接收机信号的设备和方法

    公开(公告)号:US20160226609A1

    公开(公告)日:2016-08-04

    申请号:US15021677

    申请日:2014-09-15

    发明人: Stefan Goetz

    IPC分类号: H04H20/62 H04H20/86

    摘要: The invention relates to a device and method for reproducing digital receiver signals. The claimed invention provides the user with a conventional radio receiver having a universal and comfortable operational concept for reproducing digital receiver signals.

    摘要翻译: 本发明涉及一种用于再现数字接收机信号的装置和方法。 所要求保护的发明为用户提供了具有用于再现数字接收机信号的通用且舒适的操作概念的常规无线电接收机。

    TAGGING LANGUAGE FOR BROADCAST RADIO
    8.
    发明申请
    TAGGING LANGUAGE FOR BROADCAST RADIO 审中-公开
    广播无线电标签语言

    公开(公告)号:US20160105249A1

    公开(公告)日:2016-04-14

    申请号:US14971089

    申请日:2015-12-16

    IPC分类号: H04H20/86 H04H60/91 H04H60/09

    摘要: Apparatus, methods, processors and computer programs products for generating or processing a broadcast radio transmission comprising multimedia content and supplemental information corresponding to the multimedia content. The supplemental information comprises a selected data group from a plurality of predetermined data groups each comprising different data, wherein the selected data group further comprises a tag and a corresponding set of text data operable to initiate a predetermined capability of a wireless device.

    摘要翻译: 用于生成或处理包括多媒体内容的广播无线电传输的装置,方法,处理器和计算机程序产品以及对应于多媒体内容的补充信息。 补充信息包括来自多个预定数据组的选定数据组,每个预定数据组包括不同的数据,其中所选择的数据组还包括可用于启动无线设备的预定能力的标签和相应的一组文本数据。

    Wireless communication session initiation based on a frequency modulation (FM) radio data service (RDS)
    9.
    发明授权
    Wireless communication session initiation based on a frequency modulation (FM) radio data service (RDS) 有权
    基于频率调制(FM)无线电数据业务(RDS)的无线通信会话发起

    公开(公告)号:US09258071B1

    公开(公告)日:2016-02-09

    申请号:US14147967

    申请日:2014-01-06

    IPC分类号: H04H20/38 H04H60/33

    摘要: A wireless communication system wirelessly receives a Frequency Modulation (FM) signal including audio data and Radio Data System (RDS) data. The wireless communication system audibly plays the audio data and graphically displays the RDS data from the FM signal. The wireless communication system detects action codes in the RDS data, and in response, initiates a wireless communication session with a wireless communication network. The wireless communication system also audibly captures user data. The wireless communication system then wirelessly transfers the captured user data for delivery to a server over the wireless communication session.

    摘要翻译: 无线通信系统无线地接收包括音频数据和无线电数据系统(RDS)数据的频率调制(FM)信号。 无线通信系统可听见地播放音频数据,并以图形方式显示来自FM信号的RDS数据。 无线通信系统检测RDS数据中的动作代码,作为响应,发起与无线通信网络的无线通信会话。 无线通信系统还可听见地捕获用户数据。 无线通信系统然后通过无线通信会话无线地传送所捕获的用户数据以传送到服务器。