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    Systems and methods for providing product information over a carrier wave
    92.
    发明授权
    Systems and methods for providing product information over a carrier wave 有权
    通过载波提供产品信息的系统和方法

    公开(公告)号：US08265576B2

    公开(公告)日：2012-09-11

    申请号：US12880994

    申请日：2010-09-13

    Applicant: Jackson Kit Wang

    Inventor： Jackson Kit Wang

    IPC: H04B1/18

    CPC classification number: H04B1/16 ,  H04H20/30 ,  H04H40/18 ,  H04H40/27 ,  H04H60/15 ,  H04H60/23 ,  H04H2201/18

    Abstract: A customer relationship management (CRM) method using IBOC-radio signals is provided. A message in the radio signal is parsed to obtain a key. The key is compared to a plurality of stored keys. When the received key matches a stored key, a data structure associated with the message is outputted. A device comprising a lookup table with a plurality of stored keys, a tuner unit that receives a CRM in an IBOC signal, and a controller in electrical communication with the lookup table and tuner is provided. The controller comprises (i) instructions for comparing a key in the CRM to one or more stored keys in the plurality of stored keys and (ii) instructions for permitting the display of a display text associated with the received key when there is a match between the received key and a key in the plurality of stored keys.

    Abstract translation: 提供使用IBOC无线电信号的客户关系管理（CRM）方法。 解析无线电信号中的消息以获得密钥。 将密钥与多个存储的密钥进行比较。 当所接收的密钥与存储的密钥相匹配时，输出与消息相关联的数据结构。 提供一种包括具有多个存储的键的查找表的设备，接收IBOC信号中的CRM的调谐器单元以及与查找表和调谐器电通信的控制器。 控制器包括（i）用于将CRM中的密钥与多个存储的密钥中的一个或多个存储的密钥进行比较的指令，以及（ii）用于允许显示与所接收的密钥相关联的显示文本的指令， 所接收的密钥和多个存储的密钥中的密钥。

    DETECTING DIGITAL RADIO SIGNALS
    93.
    发明申请
    DETECTING DIGITAL RADIO SIGNALS 有权
    检测数字无线电信号

    公开(公告)号：US20120082271A1

    公开(公告)日：2012-04-05

    申请号：US12894316

    申请日：2010-09-30

    Applicant: JAVIER ELENES ,  Brian D. Green ,  Michael R. May

    Inventor： JAVIER ELENES ,  Brian D. Green ,  Michael R. May

    IPC: H04L27/06

    CPC classification number: H04B1/086 ,  H04H20/30 ,  H04H60/12 ,  H04H2201/18 ,  H04L25/03834 ,  H04L27/0008 ,  H04W52/0229 ,  Y02D70/00

    Abstract: In one embodiment, a receiver front end circuit can receive and process multiple radio frequency (RF) signals and output downconverted signals corresponding to these signals. In turn, multiple signal processors can be coupled to this front end. Specifically, a first signal processor can receive and process the downconverted signals to output a first signal obtained from content of a first RF signal, and a second signal processor can receive and process the downconverted signals to output a second signal obtained from content of a second RF signal. In addition, the apparatus may include a detection circuit coupled to the receiver front end circuit to detect presence of at least the second signal and enable the second signal processor responsive to the detected presence.

    Abstract translation: 在一个实施例中，接收器前端电路可以接收和处理多个射频（RF）信号并输出​​与这些信号对应的下变频信号。 反过来，多个信号处理器可以耦合到该前端。 具体地，第一信号处理器可以接收并处理下变频信号以输出从第一RF信号的内容获得的第一信号，并且第二信号处理器可以接收并处理下变频信号以输出从第二RF信号的内容获得的第二信号 射频信号。 此外，该装置可以包括耦合到接收器前端电路的检测电路，以检测至少第二信号的存在，并使第二信号处理器能够响应于检测到的存在。

    System and method for sampling rate adjustment of digital radio receiver
    94.
    发明授权
    System and method for sampling rate adjustment of digital radio receiver 有权
    数字无线电接收机采样率调整系统及方法

    公开(公告)号：US08040989B2

    公开(公告)日：2011-10-18

    申请号：US12010731

    申请日：2008-01-29

    Applicant: Michael Nekhamkin ,  Valeriy Lotarevich ,  William Schier

    Inventor： Michael Nekhamkin ,  Valeriy Lotarevich ,  William Schier

    IPC: H04L7/00

    CPC classification number: H04L7/0029 ,  H04H40/18 ,  H04H2201/18

    Abstract: Methods and systems for adjusting a sampling rate of a digital radio receiver are disclosed that comprise the steps of receiving from a decoder a first frame of data having a first number of samples; determining at the digital radio receiver a phase difference between a receiver clock and a transmitter clock; generating at the digital radio receiver a second frame of data having a second number of samples, wherein the second number of samples depends on the phase difference between the receiver clock and the transmitter clock such that the second number of samples is less than the first number of samples if the transmitter clock is ahead of the receiver clock, and the second number of samples is greater than the first number of samples if the receiver clock is ahead of the transmitter clock; outputting the second frame of data having the second number of samples; and requesting a next frame of data from the decoder at a time that is earlier than a processing time for the first number of samples if the transmitter clock is ahead of the receiver clock and at a time that is later than the processing time for the first number of samples if the receiver clock is ahead of the transmitter clock such that the next frame of data from the decoder and a next transmitter frame are synchronized, and wherein whether the second number of samples is greater than or less than the first number of samples is determined by whether the sampling rate is increased or decreased.

    Abstract translation: 公开了一种用于调整数字无线电接收机的采样率的方法和系统，其包括以下步骤：从解码器接收具有第一数量样本的第一数据帧; 在数字无线电接收机处确定接收机时钟和发射机时钟之间的相位差; 在所述数字无线电接收机处产生具有第二数量样本的第二帧数据，其中所述第二数量样本取决于所述接收器时钟和所述发射机时钟之间的相位差，使得所述第二数量的采样小于所述第一数量 如果发射机时钟在接收机时钟之前，并且如果接收机时钟在发射机时钟之前，则第二个采样数量大于第一采样数; 输出具有第二数量样本的第二数据帧; 以及如果所述发射机时钟在所述接收机时钟之前的时间以及比所述第一接收机的处理时间晚的时间，则在比所述第一采样数的处理时间早的时间，从所述解码器请求下一帧数据 如果接收机时钟在发射机时钟之前，使得来自解码器和下一发射机帧的下一帧数据被同步，并且其中第二数目的样本是否大于或小于第一数目的采样 由取样率是否增加决定。

    Method and apparatus for multi-stream transmission with time and frequency diversity in an orthogonal frequency division multiplexing (OFDM) communication system
    95.
    发明授权
    Method and apparatus for multi-stream transmission with time and frequency diversity in an orthogonal frequency division multiplexing (OFDM) communication system 有权
    在正交频分复用（OFDM）通信系统中用于具有时间和频率分集的多流传输的方法和装置

    公开(公告)号：US07974255B2

    公开(公告)日：2011-07-05

    申请号：US10636161

    申请日：2003-08-07

    Applicant: Mohsen Sarraf ,  Mohammad Hossein Zarrabizadeh

    Inventor： Mohsen Sarraf ,  Mohammad Hossein Zarrabizadeh

    IPC: H04J1/00

    CPC classification number: H04B1/667 ,  H04H2201/18

    Abstract: A method and apparatus increase the time and frequency diversity of a multi-stream signal in a DAB system. A plurality of audio streams are divided into four (4) digital sub-streams, C00, C01, C10, and C11. Each sub-stream C00, C01, C10, and C11 is assigned a unique frequency band, and time slot. A first core sub-stream C10 is mapped to one frequency partition and a second core sub-stream C00 is mapped to another frequency partition and delayed relative to the first core sub-stream. Similarly, two enhancement sub-streams C11 and C01 are mapped to different frequency partitions and are time delayed relative to each other and the core sub-streams. The two core sub-streams C00 and C10 can have a maximum separation across both the time and frequency axes.

    Abstract translation: 一种方法和装置增加了DAB系统中多流信号的时间和频率分集。 多个音频流被分成四（4）个数字子流C00，C01，C10和C11。 每个子流C00，C01，C10和C11被分配唯一的频带和时隙。 第一核心子流C10被映射到一个频率分区，并且第二核心子流C00映射到另一频率分区并相对于第一核心子流延迟。 类似地，两个增强子流C11和C01被映射到不同的频率分区，并且相对于彼此和核心子流被时间延迟。 两个核心子流C00和C10可以在时间轴和频率轴之间具有最大间隔。

    Systems and methods for fast seek and scan functions in a digital radio broadcast receiver
    96.
    发明申请
    Systems and methods for fast seek and scan functions in a digital radio broadcast receiver 有权
    用于在数字无线电广播接收机中快速寻找和扫描功能的系统和方法

    公开(公告)号：US20100166122A1

    公开(公告)日：2010-07-01

    申请号：US12318593

    申请日：2008-12-31

    Applicant: Ashwini Pahuja ,  Marek Milbar ,  David Gorelik ,  Catherine P. Gooi

    Inventor： Ashwini Pahuja ,  Marek Milbar ,  David Gorelik ,  Catherine P. Gooi

    IPC: H04L27/06

    CPC classification number: H04H20/26 ,  H04H20/30 ,  H04H40/18 ,  H04H2201/18

    Abstract: Methods and systems for advancing to another service from a plurality of services in a digital radio broadcast receiver are described. The methods and systems include the steps of receiving an instruction to advance to another service from a man-machine interface of the digital radio broadcast receiver, selecting an entry from a set of entries stored in a memory of the digital radio broadcast receiver responsive to the instruction, wherein each entry identifies a service, and wherein at least some of said services correspond to services identified as receivable, tuning to a first service identified by the selected entry, rendering content received on the first service at the digital radio broadcast receiver, and updating the set of entries stored in the memory of the digital radio broadcast receiver based on at least one criteria.

    Abstract translation: 描述了用于从数字无线电广播接收机中的多个服务推进到另一服务的方法和系统。 所述方法和系统包括以下步骤：从数字无线电广播接收机的人机界面接收从另一服务推进到另一服务的指令，响应于该数字无线电广播接收机从存储在数字无线电广播接收机的存储器中的一组条目中选择条目 指令，其中每个条目识别服务，并且其中至少一些所述服务对应于被识别为可接收的服务，调谐到由所选择的条目标识的第一服务，呈现在数字无线电广播接收机处在第一服务上接收的内容，以及 基于至少一个准则来更新存储在数字无线电广播接收机的存储器中的条目集合。

    Opportunistic Muting Of All-Digital Stations During Noisy Acquisition
    97.
    发明公开
    Opportunistic Muting Of All-Digital Stations During Noisy Acquisition 审中-公开

    公开(公告)号：US20240297725A1

    公开(公告)日：2024-09-05

    申请号：US18574868

    申请日：2021-06-30

    Applicant: iBiquity Digital Corporation

    Inventor： Eugene Parrella ,  Robert Saizan

    IPC: H04H60/41 ,  H04H40/18

    CPC classification number: H04H60/41 ,  H04H40/18 ,  H04H2201/18

    Abstract: A method performed by a radio receiver comprises: receiving digital radio broadcast (DRB) signals on respective frequency channels: acquiring a list that identifies which of the DRB signals are all-digital signals: receiving a tune command to tune to a particular DRB signal among the DRB signals; and upon determining that the particular DRB signal is an all-digital signal based on the list: playing muted audio: while playing muted audio, tuning to the particular DRB signal based on the tune command and performing digital signal acquisition of the particular DRB signal; and when the digital signal acquisition is complete, performing digital demodulation of the particular DRB signal to recover digital audio, and switching from playing muted audio to playing digital audio.

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