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公开(公告)号：US20210328549A1
公开(公告)日：2021-10-21
申请号：US17275593
申请日：2019-08-20
摘要： There are provided an oscillator circuit and a radio receiver capable of reducing a frequency fluctuation of an oscillation frequency to a small extent. There is provided an oscillator circuit including an LC oscillator circuit, an amplitude detection circuit, and a bias generation circuit, in which the LC oscillator circuit includes an inductor and at least one variable capacitance element, the amplitude detection circuit detects an oscillation amplitude of the LC oscillator circuit and converts the oscillation amplitude into a DC voltage, and the bias generation circuit compares the DC voltage with a voltage for generating a bias signal, the voltage changing on the basis of a temperature fluctuation of the bias generation circuit, calculates a difference between the DC voltage and a voltage after the change, and generates, on the basis of the difference, a bias signal that reduces a fluctuation in the oscillation amplitude, to control the oscillation amplitude.
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公开(公告)号：US20210099244A1
公开(公告)日：2021-04-01
申请号：US16978698
申请日：2018-05-18
发明人： Dejun Zeng
摘要： Disclosed is an interactive device for an internet radio station, comprising a content presentation unit and a content selection unit. The content selection unit includes a knob, a selection module, a processing module, an indication module and a communication module. The knob inputs by a user, a channel selection instruction by means of manual rotation; the selection module generates a corresponding electrical signal according to the channel selection instruction; the processing module obtains, according to the electrical signal, a corresponding audio resource from the network radio station and releases the audio resource to the content presentation unit which plays the audio resource. The indication module generates, under the driving of the knob, a state change corresponding to the channel selection instruction. In this way, the user can select the audio resource by rotating the knob, so that the channel selection manner is similar to the traditional radio rotary tuning method.
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公开(公告)号：US20210036794A1
公开(公告)日：2021-02-04
申请号：US17043751
申请日：2018-05-18
发明人： Dejun Zeng
摘要： Disclosed is an interactive device for an internet radio station including a content presentation unit and a content selection unit. The content selection unit includes an operation module, a processing module, an indication module and a communication module. The operation module is used by a user to input a channel selection command by means of manual rotation and to generate a corresponding electrical signal. The processing module is used for acquiring corresponding audio resources from the network radio according to the electrical signal and issuing the corresponding audio resources to the content presentation unit which is used for playing back the audio resource. The processing module is further used for driving the indication module to generate a state change corresponding to the electrical signal. Hence, the user may select audio resources by rotating the operation module, so that the channel selection is similar to a traditional rotary tuning method.
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公开(公告)号：US20210036793A1
公开(公告)日：2021-02-04
申请号：US16964194
申请日：2018-12-21
发明人： SATOSHI OKADA , KENICHI KOBAYASHI
摘要： To provide a demodulation circuit, a processing circuit, a processing method, and a processing device that are capable of implementing more prompt acquisition of alert information. Provided is a demodulation circuit including a demodulation unit configured to demodulate a broadcast signal received by a reception circuit that receives the broadcast signal, a determination unit configured to determine whether or not acquisition of alert information included in the demodulated broadcast signal is necessary according to a set operation mode, on the basis of first alert notification information indicating an update state of the alert information included in the demodulated broadcast signal, and an output processing unit configured to output second alert notification information corresponding to the operation mode from a predetermined terminal to which a processing circuit having a function to acquire the alert information is electrically connected, in a case where acquisition of the alert information is determined to be necessary.
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75.发明授权公开(公告)号：US10862519B1
公开(公告)日：2020-12-08
申请号：US16855741
申请日：2020-04-22
申请人： NXP B.V.
发明人： Erik Keukens
摘要： Exemplary aspects are directed to FM-radio circuitries and systems in which, at the receiving end of a broadcast transmission, circuitry is used set the bandwidth and band position for receiving the desired channel of the broadcast signal based on measured signal properties of immediately-adjacent channel(s). The adjustments to the received channel include bandwidth selection and offset frequency adjustment. These adjustments are, in part, based on USN signal levels as well as modulation symmetry detection which are affected by the modulation level of the desired and other channel(s). Signal processing circuitry such as logic/CPU circuitry, then receives the desired channel, including information carried by the broadcast signal, in response to setting the bandwidth based on the measured signal properties.
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公开(公告)号：US20200287703A1
公开(公告)日：2020-09-10
申请号：US16880070
申请日：2020-05-21
发明人： Brian W. Kroeger , Paul J. Peyla
IPC分类号： H04L7/00 , H04L12/18 , H04H20/30 , H04H40/18 , H04H40/00 , H04H60/00 , H04H60/12 , H04H20/18
摘要： A method for processing audio signals in a radio transmitter, includes: receiving an analog audio sample stream and a digital audio sample stream; determining offsets in time between the analog audio stream and the digital audio stream using a normalized cross-correlation of audio envelopes of the analog audio sample stream and the digital audio sample stream; filtering the determined offsets in time to produce filtered offset values; determining an alignment slip adjustment value as a function of the filtered offset values; aligning the analog audio sample stream and the digital audio sample stream using the determined alignment slip adjustment value; and generating a hybrid radio signal for broadcast that includes time-aligned analog audio and digital audio.
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公开(公告)号：US20200028604A1
公开(公告)日：2020-01-23
申请号：US16482390
申请日：2018-02-28
发明人： Satoshi OKADA , Kazuyuki TAKAHASHI , Takeshi OHNO
摘要： This technology relates to a reception apparatus and a data processing method for easily implementing circuits on the receiving side.There is provided a reception apparatus including: a demodulation section configured to demodulate packets obtained with respect to each of multiple PLPs included in a broadcast signal; and a processing section configured to process the packets demodulated by the demodulation section. The demodulation section and the processing section are connected with each other via a single interface or interfaces fewer than the number of the PLPs. The demodulation section adds identification information to a specific packet among the packets obtained with respect to each of the PLP, the identification information identifying the PLP to which each of the packets belongs. The processing section identifies the PLP to which belongs each of the packets input from the demodulation section via the single interface or the interfaces fewer than the number of the PLPs, on the basis of the identification information obtained from the specific packet. This technology may be applied to television receivers, for example.
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公开(公告)号：US20190190691A1
公开(公告)日：2019-06-20
申请号：US16284586
申请日：2019-02-25
发明人： Brian W. Kroeger , Paul J. Peyla
摘要： A method for processing audio signals in a radio transmitter, includes: receiving an analog audio sample stream and a digital audio sample stream; determining offsets in time between the analog audio stream and the digital audio stream using a normalized cross-correlation of audio envelopes of the analog audio sample stream and the digital audio sample stream; filtering the determined offsets in time to produce filtered offset values; determining an alignment slip adjustment value as a function of the filtered offset values; aligning the analog audio sample stream and the digital audio sample stream using the determined alignment slip adjustment value; and generating a hybrid radio signal for broadcast that includes time-aligned analog audio and digital audio.
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79.发明申请公开(公告)号：US20190158122A1
公开(公告)日：2019-05-23
申请号：US16240624
申请日：2019-01-04
申请人： LG ELECTRONICS INC.
发明人： Chul Soo LEE , In Hwan CHOI , Ho Taek HONG , Kook Yeon KWAK , Hyoung Gon LEE , Jae Hyung SONG , Jin Pil KIM , Won Gyu SONG , Joon Hui LEE , Jin Woo KIM , Byoung Gill KIM , Jong Yeul Suh , Kyu Tae AHN
IPC分类号： H03M13/27 , H04L1/00 , H04N19/70 , H04L29/06 , H04L12/18 , H04H40/18 , H04N21/6433 , H04N21/4623 , H04N21/438 , H04N21/435 , H04N19/61 , H04H60/11
摘要： A method of transmitting a broadcast signal includes encoding mobile data for FEC (Forward Error Correction); encoding signaling information for signaling the mobile data; allocating the encoded mobile data and signaling data into a transmission frame; and transmitting the broadcast signal including the transmission frame, wherein the transmission frame includes a service signaling table having service_type information identifying a type of a service of the mobile data and hidden information indicating whether the service of the mobile data is hidden or not.
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公开(公告)号：US10277922B2
公开(公告)日：2019-04-30
申请号：US15320661
申请日：2015-06-19
发明人： Hyun-Koo Yang , Sung-Hee Hwang
IPC分类号： H04N21/234 , H04H40/18 , H04L1/00 , H04N21/242 , H04N21/647
摘要： A method for receiving media data by a receiving apparatus in a multimedia system, the method comprising: receiving, from a transmission apparatus, a signaling message; and decoding media data corresponding to each of at least two assets based on control information included in the signaling message; wherein the control information includes time information to control an output time of decoded media data for each of the at least two asset.
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