JP7039485B2 - ハイブリッドhdラジオ(商標)技術のための時間整合測定 - Google Patents
ハイブリッドhdラジオ(商標)技術のための時間整合測定 Download PDFInfo
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- JP7039485B2 JP7039485B2 JP2018554342A JP2018554342A JP7039485B2 JP 7039485 B2 JP7039485 B2 JP 7039485B2 JP 2018554342 A JP2018554342 A JP 2018554342A JP 2018554342 A JP2018554342 A JP 2018554342A JP 7039485 B2 JP7039485 B2 JP 7039485B2
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H40/00—Arrangements specially adapted for receiving broadcast information
- H04H40/18—Arrangements characterised by circuits or components specially adapted for receiving
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/28—Arrangements for simultaneous broadcast of plural pieces of information
- H04H20/30—Arrangements for simultaneous broadcast of plural pieces of information by a single channel
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H40/00—Arrangements specially adapted for receiving broadcast information
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
- H04H60/09—Arrangements for device control with a direct linkage to broadcast information or to broadcast space-time; Arrangements for control of broadcast-related services
- H04H60/11—Arrangements for counter-measures when a portion of broadcast information is unavailable
- H04H60/12—Arrangements for counter-measures when a portion of broadcast information is unavailable wherein another information is substituted for the portion of broadcast information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/16—Arrangements for providing special services to substations
- H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L7/00—Arrangements for synchronising receiver with transmitter
- H04L7/0016—Arrangements for synchronising receiver with transmitter correction of synchronization errors
- H04L7/0033—Correction by delay
- H04L7/0041—Delay of data signal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H2201/00—Aspects of broadcast communication
- H04H2201/10—Aspects of broadcast communication characterised by the type of broadcast system
- H04H2201/18—Aspects of broadcast communication characterised by the type of broadcast system in band on channel [IBOC]
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Circuits Of Receivers In General (AREA)
- Stereophonic System (AREA)
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Description
(1)混合アルゴリズムに相互相関係数を受け渡して混合閾値を調整し、不整合の検出時には混合を抑制することができ、
(2)測定された時間オフセットを用いてデジタルオーディオ信号の遅延をリアルタイムで調整することにより、アナログオーディオとデジタルオーディオとを自動的に整合することができ、又は、
(3)位相調整デジタルオーディオが入力デジタルオーディオに一時的に取って代わって混合中の音質を改善することができる。
[xenv,yenv,xabsf,yabsf,xbass,ybass]=filter_vectors(x,y)
[peakabs,offset,corr_coef,corr_phadj,ynormadj,peakbass]=meas_offset(x,y,xenv,yenv,xabsf,yabsf,xbass,ybass,lagmin,lagmax)
hlpf=compute_LPF_coefs(Klpf)
hbass=compute_LPF_coefs(Kbass)
habs=compute_LPF_coefs(Kabs)
henv=compute_LPF_coefs(Kenv)
xlpf=LPF(x,hlpf,R)
ylpf=LPF(y,hlpf,R)
xbass=LPF(xlpf,hbass,1)
ybass=LPF(ylpf,hbass,1)
m=0...length(xbass)-1に対してxbpfm=xlpfm+D-xbassm
n=0...length(ybass)-1に対してybpfn=ylpfn+D-ybassn
m=0...length(xbpf)-1に対してxabsm=|xbpfm|
n=0...length(ybpf)-1に対してyabsn=|ybpfn|
xabsf=LPF(xabs,habs,1)
yabsf=LPF(yabs,habs,1)
xenv=LPF(xabsf,henv,Renv)
yenv=LPF(yabsf,henv,Renv)
lagmin=0
lagmax=length(yenv)-length(xenv)
[peakenv,lagpqenv]=CROSS_CORRELATE(xenv,yenv,lagmin,lagmax)
lagabsmin=round[Renv・(lagpqenv-0.5)]
lagabsmax=round[Renv・(lagpqenv+0.5)]
[peakbass,lagpqabs]=CROSS_CORRELATE(xabsf,yabsf,lagabsmin,lagabsmax)
peakbass=CORRELATE_BASS(xbass,ybass,lagpqabs)
offset=round(R・lagpqabs)
[corr_coef,corr_phadj,ynormadj]=CORRELATION_METRICS(x,y,offset)
offset_filtk=offset_filtk-1+α・max[-lim,min(lim,offsetk-offset_filtk-1)]
ここでの±limは、現在のフィルタリングされたoffset_filt値からの最大許可入力offset偏差である。limの推奨値は、offset測定値の典型的な標準偏差よりも若干大きくすべきである(例えば、lim=8サンプル)。limの非線形性は、低頻度の異常測定offset値の影響を抑制する。単極IIRフィルタのパラメータαは、その固有の時定数τ秒に関連する。
(又は約63%)に達する。一般に、時間整合オフセットのステップ変化は予想されないが、これらはオーディプロセッサの設定値の変化と共に生じることがある。
12 アンテナ
14 HDラジオチューナ
16 ライン
18 ライン
20 AM又はFMアナログ復調器
22 アナログオーディオ
24 HDラジオデジタル復調器
26 ライン
28 デインタリーバ/FECデコーダ
30 オーディオフレームデフォーマッタ
32 デジタルオーディオフレーム
34 HDCラジオデコーダ
36 デジタルオーディオ
38 時間オフセット測定
40 ライン
42 ライン
44 相互相関係数
46 時間オフセット
48 位相調整デジタルオーディオ
50 サンプル遅延
52 混合アルゴリズム
54 CRC状態
56 混合制御
58 オーディオA/D混合
60 ライン
62 混合オーディオ出力
Claims (4)
- ラジオ受信機においてデジタルオーディオ放送信号を処理する方法であって、
ハイブリッド放送信号を受信するステップと、
前記ハイブリッド放送信号を復調してアナログオーディオストリーム及びデジタルオーディオストリームを生成するステップと、
前記アナログオーディオストリームのエンベロープと前記デジタルオーディオストリームのエンベロープとの正規化相互相関を用いて、前記アナログオーディオストリームと前記デジタルオーディオストリームとの間の時間オフセットを測定するステップと、
前記ラジオ受信機の出力を前記アナログオーディオストリームから前記デジタルオーディオストリームに、又は前記デジタルオーディオストリームから前記アナログオーディオストリームに混合するステップと、
整合パラメータである前記時間オフセットを用いてアナログ信号混合評価基準をスケーリングして、前記混合するステップにおける混合閾値を制御し、整合していない前記アナログオーディオストリームと前記デジタルオーディオストリームで生じる不整合の検出時に混合を抑制するステップと、
を含むことを特徴とする方法。 - 前記時間オフセットを使用して、前記アナログオーディオストリームと前記デジタルオーディオストリームとを整合させるステップをさらに含む、
請求項1に記載の方法。 - ラジオ受信機であって、
ハイブリッド放送信号を受信し、
前記ハイブリッド放送信号を復調してアナログオーディオストリーム及びデジタルオーディオストリームを生成し、
前記アナログオーディオストリームのエンベロープと前記デジタルオーディオストリームのエンベロープとの正規化相互相関を用いて、前記アナログオーディオストリームと前記デジタルオーディオストリームとの間の時間オフセットを測定し、
前記ラジオ受信機の出力を前記アナログオーディオストリームから前記デジタルオーディオストリームに、又は前記デジタルオーディオストリームから前記アナログオーディオストリームに混合し、
前記アナログオーディオストリームのエンベロープと前記デジタルオーディオストリームのエンベロープとの前記正規化相互相関を使用してアナログ信号混合評価基準をスケーリングして、前記混合するステップにおける混合閾値を制御し、整合していない前記アナログオーディオストリームと前記デジタルオーディオストリームで生じる不整合の検出時に混合を抑制する、
ように構成された処理回路を備える、
ことを特徴とするラジオ受信機。 - 前記処理回路は、前記時間オフセットを使用して、前記アナログオーディオストリームと前記デジタルオーディオストリームとを整合させるようにさらに構成される、
請求項3に記載のラジオ受信機。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/099,233 | 2016-04-14 | ||
US15/099,233 US9832007B2 (en) | 2016-04-14 | 2016-04-14 | Time-alignment measurement for hybrid HD radio™ technology |
PCT/US2017/027104 WO2017180685A1 (en) | 2016-04-14 | 2017-04-12 | Time-alignment measurement for hybrid hd radiotm technology |
Publications (2)
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JP2019514300A JP2019514300A (ja) | 2019-05-30 |
JP7039485B2 true JP7039485B2 (ja) | 2022-03-22 |
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JP2018554342A Active JP7039485B2 (ja) | 2016-04-14 | 2017-04-12 | ハイブリッドhdラジオ(商標)技術のための時間整合測定 |
Country Status (10)
Country | Link |
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US (3) | US9832007B2 (ja) |
EP (1) | EP3443692A1 (ja) |
JP (1) | JP7039485B2 (ja) |
KR (1) | KR102482615B1 (ja) |
CN (1) | CN109565342B (ja) |
BR (1) | BR112018071128A2 (ja) |
CA (1) | CA3020968A1 (ja) |
MX (2) | MX2018012571A (ja) |
TW (1) | TWI732851B (ja) |
WO (1) | WO2017180685A1 (ja) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9832007B2 (en) | 2016-04-14 | 2017-11-28 | Ibiquity Digital Corporation | Time-alignment measurement for hybrid HD radio™ technology |
US10666416B2 (en) | 2016-04-14 | 2020-05-26 | Ibiquity Digital Corporation | Time-alignment measurement for hybrid HD radio technology |
EP3337065B1 (en) * | 2016-12-16 | 2020-11-25 | Nxp B.V. | Audio processing circuit, audio unit and method for audio signal blending |
US10574371B2 (en) * | 2017-10-23 | 2020-02-25 | Wheatstone Corporation | Audio processor apparatus, methods and computer program products using integrated diversity delay error compensation |
US10484115B2 (en) * | 2018-02-09 | 2019-11-19 | Ibiquity Digital Corporation | Analog and digital audio alignment in the HD radio exciter engine (exgine) |
US10805025B2 (en) * | 2018-09-17 | 2020-10-13 | Octave Communications | Method and system for evaluating signal propagation over a radio channel |
US11418879B2 (en) * | 2020-05-13 | 2022-08-16 | Nxp B.V. | Audio signal blending with beat alignment |
CN115985333A (zh) * | 2021-10-15 | 2023-04-18 | 广州视源电子科技股份有限公司 | 一种音频信号对齐方法、装置、存储介质及电子设备 |
CA3233115A1 (en) * | 2021-10-29 | 2023-05-04 | Ibiquity Digital Corporation | Method for time aligning in-band on-channel digital radio audio with fm radio audio |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008538063A (ja) | 2005-04-08 | 2008-10-02 | アイビキュイティ・デジタル・コーポレイション | ハイブリッドラジオ波形のアナログ及びデジタル音声を整合する方法 |
US20130003801A1 (en) | 2011-06-29 | 2013-01-03 | Javier Elenes | Delaying analog sourced audio in a radio simulcast |
US20130279700A1 (en) | 2012-04-21 | 2013-10-24 | Texas Instruments Incorporated | Undetectable Combining of Nonaligned Concurrent Signals |
Family Cites Families (66)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3726986B2 (ja) | 1997-08-07 | 2005-12-14 | ソニー株式会社 | 通信方法、送信装置、受信装置及びセルラー無線通信システム |
US6178317B1 (en) | 1997-10-09 | 2001-01-23 | Ibiquity Digital Corporation | System and method for mitigating intermittent interruptions in an audio radio broadcast system |
US6590944B1 (en) | 1999-02-24 | 2003-07-08 | Ibiquity Digital Corporation | Audio blend method and apparatus for AM and FM in band on channel digital audio broadcasting |
US6549544B1 (en) | 1999-11-10 | 2003-04-15 | Ibiquity Digital Corporation | Method and apparatus for transmission and reception of FM in-band on-channel digital audio broadcasting |
US6836520B1 (en) | 2000-11-10 | 2004-12-28 | Motorola, Inc. | Method and apparatus for establishing synchronization with a synchronization signal |
US6876859B2 (en) * | 2001-07-18 | 2005-04-05 | Trueposition, Inc. | Method for estimating TDOA and FDOA in a wireless location system |
FR2835120B1 (fr) * | 2002-01-21 | 2006-10-20 | Evolium Sas | Procede et dispositif de preparation de signaux destines a etre compares pour etablir une pre-distorsion sur l'entree d'un amplificateur |
EP1370016B1 (en) * | 2002-06-07 | 2005-04-20 | Sony International (Europe) GmbH | Method and apparatus for the reception of an audio signal transmitted both in analogue and in higher-quality digital modulation, gradually varying the mixing ratio from digital to analogue in case of poor channel conditions, so as to make the change less perceptible |
US7463311B2 (en) | 2002-09-09 | 2008-12-09 | General Instrument Corporation | Method and system for including non-graphic data in an analog video output signal of a set-top box |
US7224721B2 (en) | 2002-10-11 | 2007-05-29 | The Mitre Corporation | System for direct acquisition of received signals |
US7209531B1 (en) * | 2003-03-26 | 2007-04-24 | Cavium Networks, Inc. | Apparatus and method for data deskew |
US7106814B2 (en) * | 2003-04-30 | 2006-09-12 | Motorola, Inc. | Method and wireless device employing a preamble to initiate communications |
US20040235442A1 (en) | 2003-05-19 | 2004-11-25 | Toporski Todd A. | Method to block audio and data in a digital radio receiver |
JP2004349805A (ja) * | 2003-05-20 | 2004-12-09 | Alpine Electronics Inc | Iboc放送受信機 |
US7546088B2 (en) * | 2004-07-26 | 2009-06-09 | Ibiquity Digital Corporation | Method and apparatus for blending an audio signal in an in-band on-channel radio system |
JP2006115200A (ja) * | 2004-10-14 | 2006-04-27 | Fujitsu Ten Ltd | 受信機 |
JP2006270824A (ja) * | 2005-03-25 | 2006-10-05 | Pioneer Electronic Corp | ディジタル放送受信装置及びディジタル放送受信方法 |
US7733983B2 (en) | 2005-11-14 | 2010-06-08 | Ibiquity Digital Corporation | Symbol tracking for AM in-band on-channel radio receivers |
US8947233B2 (en) | 2005-12-09 | 2015-02-03 | Tego Inc. | Methods and systems of a multiple radio frequency network node RFID tag |
KR100954117B1 (ko) * | 2006-02-22 | 2010-04-23 | 주식회사 하이닉스반도체 | 지연 고정 루프 장치 |
US7613104B2 (en) * | 2006-05-31 | 2009-11-03 | Nokia Corporation | Method, apparatus and computer program product providing synchronization for OFDMA downlink signal |
JP4182444B2 (ja) | 2006-06-09 | 2008-11-19 | ソニー株式会社 | 信号処理装置、信号処理方法、及びプログラム |
US7944998B2 (en) * | 2006-06-16 | 2011-05-17 | Harman International Industries, Incorporated | Audio correlation system for high definition radio blending |
US8107694B2 (en) * | 2006-07-20 | 2012-01-31 | Ultrasound Medical Devices, Inc. | Method of tracking speckle displacement between two images |
US8014446B2 (en) * | 2006-12-22 | 2011-09-06 | Ibiquity Digital Corporation | Method and apparatus for store and replay functions in a digital radio broadcasting receiver |
EP1944887B1 (en) * | 2007-01-11 | 2013-11-06 | Harman Becker Automotive Systems GmbH | Radio receiver for hybrid broadcast systems |
US7933368B2 (en) * | 2007-06-04 | 2011-04-26 | Ibiquity Digital Corporation | Method and apparatus for implementing a digital signal quality metric |
US8351843B2 (en) * | 2007-09-04 | 2013-01-08 | Ibiquity Digital Corporation | Digital radio broadcast receiver, broadcasting methods and methods for tagging content of interest |
KR100956774B1 (ko) * | 2007-12-28 | 2010-05-12 | 주식회사 하이닉스반도체 | 지연 고정 루프 회로 및 그 제어 방법 |
JP5579373B2 (ja) * | 2008-05-22 | 2014-08-27 | ピーエスフォー ルクスコ エスエイアールエル | Dll回路 |
US8180470B2 (en) | 2008-07-31 | 2012-05-15 | Ibiquity Digital Corporation | Systems and methods for fine alignment of analog and digital signal pathways |
KR101038470B1 (ko) * | 2008-10-30 | 2011-06-03 | 포항공과대학교 산학협력단 | 동작영역이 넓은 디지털제어발진기 |
US8830224B2 (en) * | 2008-12-31 | 2014-09-09 | Intuitive Surgical Operations, Inc. | Efficient 3-D telestration for local robotic proctoring |
JP4749512B2 (ja) * | 2009-01-23 | 2011-08-17 | 三菱電機株式会社 | ラジオ受信装置 |
US8467482B2 (en) * | 2009-04-03 | 2013-06-18 | Electronics And Telecommunications Research Institute | Apparatus and method for identifying transmitter in digital broadcasting system |
KR101616874B1 (ko) * | 2009-09-23 | 2016-05-02 | 삼성전자주식회사 | 다중 영상 합성 방법 및 그 장치 |
US8408061B2 (en) * | 2009-12-02 | 2013-04-02 | Olympus Ndt | Sequentially fired high dynamic range NDT/NDI inspection device |
TWI429203B (zh) * | 2010-02-03 | 2014-03-01 | Mstar Semiconductor Inc | 相位數位化裝置及其方法 |
US8724757B2 (en) | 2010-03-26 | 2014-05-13 | General Dynamics C4 Systems, Inc. | Symbol timing synchronization methods and apparatus |
US8526897B2 (en) * | 2010-11-03 | 2013-09-03 | Silicon Laboratories Inc. | Controlling power consumption in a radio tuner |
JP5372294B2 (ja) * | 2011-04-28 | 2013-12-18 | 三菱電機株式会社 | 中継衛星および衛星通信システム |
US8804865B2 (en) | 2011-06-29 | 2014-08-12 | Silicon Laboratories Inc. | Delay adjustment using sample rate converters |
US20130003637A1 (en) | 2011-06-29 | 2013-01-03 | Javier Elenes | Dynamic time alignment of audio signals in simulcast radio receivers |
US9184961B2 (en) | 2011-07-25 | 2015-11-10 | Ibiquity Digital Corporation | FM analog demodulator compatible with IBOC signals |
US9111580B2 (en) * | 2011-09-23 | 2015-08-18 | Harman International Industries, Incorporated | Time alignment of recorded audio signals |
US8831546B2 (en) * | 2011-11-07 | 2014-09-09 | Ibiquity Digital Corporation | MRC antenna diversity for FM IBOC digital signals |
US8811757B2 (en) * | 2012-01-05 | 2014-08-19 | Texas Instruments Incorporated | Multi-pass video noise filtering |
US8862084B2 (en) * | 2012-04-30 | 2014-10-14 | St-Ericsson Sa | Methods and apparatus for receiver quality test measurements |
JP5870836B2 (ja) * | 2012-05-08 | 2016-03-01 | ソニー株式会社 | 受信装置および半導体集積回路 |
KR101388587B1 (ko) * | 2012-06-04 | 2014-04-24 | 주식회사 글로베인 | 오디오 신호 제어 장치 및 방법 |
US9094139B2 (en) * | 2012-06-26 | 2015-07-28 | Ibiquity Digital Corporation | Look ahead metrics to improve blending decision |
EP2560412A1 (en) * | 2012-10-08 | 2013-02-20 | Oticon A/s | Hearing device with brain-wave dependent audio processing |
EP2720426B1 (en) * | 2012-10-09 | 2019-09-11 | Mitsubishi Electric R&D Centre Europe B.V. | Method and a device for correcting a frequency shift on received symbols |
US9054905B2 (en) * | 2013-01-15 | 2015-06-09 | Samsung Electronics Co., Ltd. | Method and apparatus for timing synchronization at sub-sampled rate for sub-sampled wideband systems |
WO2014116518A1 (en) * | 2013-01-24 | 2014-07-31 | Dolby Laboratories Licensing Corporation | Automatic loudspeaker polarity detection |
US8873677B1 (en) * | 2013-05-01 | 2014-10-28 | Samsung Electronics Co., Ltd. | Apparatus and method for enveloping tracking calibration |
US9584347B2 (en) * | 2013-05-31 | 2017-02-28 | Silicon Laboratories Inc. | Methods and systems for rapid detection of digital radio signals |
US9467255B2 (en) * | 2014-12-23 | 2016-10-11 | Ibiquity Digital Corporation | Systems and methods for digital radio broadcast with cross platform reception |
US9596044B2 (en) * | 2015-02-13 | 2017-03-14 | Ibiquity Digital Corporation | Method and apparatus for analog and digital audio blend for HD radio receivers |
EP3281315B1 (en) * | 2015-04-09 | 2023-10-25 | Ibiquity Digital Corporation | Systems and methods for automated detection of signal quality in digital radio broadcast signals |
TWI563264B (en) * | 2015-06-11 | 2016-12-21 | Faraday Tech Corp | On-chip apparatus and method for jitter measurement |
US9819480B2 (en) * | 2015-08-04 | 2017-11-14 | Ibiquity Digital Corporation | System and method for synchronous processing of analog and digital pathways in a digital radio receiver |
US9947332B2 (en) * | 2015-12-11 | 2018-04-17 | Ibiquity Digital Corporation | Method and apparatus for automatic audio alignment in a hybrid radio system |
US10666416B2 (en) | 2016-04-14 | 2020-05-26 | Ibiquity Digital Corporation | Time-alignment measurement for hybrid HD radio technology |
US9832007B2 (en) | 2016-04-14 | 2017-11-28 | Ibiquity Digital Corporation | Time-alignment measurement for hybrid HD radio™ technology |
US10177729B1 (en) | 2018-02-19 | 2019-01-08 | Ibiquity Digital Corporation | Auto level in digital radio systems |
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008538063A (ja) | 2005-04-08 | 2008-10-02 | アイビキュイティ・デジタル・コーポレイション | ハイブリッドラジオ波形のアナログ及びデジタル音声を整合する方法 |
US20130003801A1 (en) | 2011-06-29 | 2013-01-03 | Javier Elenes | Delaying analog sourced audio in a radio simulcast |
US20130279700A1 (en) | 2012-04-21 | 2013-10-24 | Texas Instruments Incorporated | Undetectable Combining of Nonaligned Concurrent Signals |
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CN109565342B (zh) | 2021-08-06 |
WO2017180685A1 (en) | 2017-10-19 |
MX2018012571A (es) | 2019-08-14 |
EP3443692A1 (en) | 2019-02-20 |
CN109565342A (zh) | 2019-04-02 |
US20180139035A1 (en) | 2018-05-17 |
KR102482615B1 (ko) | 2022-12-28 |
JP2019514300A (ja) | 2019-05-30 |
TW201742398A (zh) | 2017-12-01 |
MX2021007128A (es) | 2021-08-11 |
USRE48966E1 (en) | 2022-03-08 |
CA3020968A1 (en) | 2017-10-19 |
US20170302432A1 (en) | 2017-10-19 |
US9832007B2 (en) | 2017-11-28 |
US10225070B2 (en) | 2019-03-05 |
TWI732851B (zh) | 2021-07-11 |
BR112018071128A2 (pt) | 2019-02-05 |
KR20180133905A (ko) | 2018-12-17 |
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