公开(公告)号：US10255926B2

公开(公告)日：2019-04-09

申请号：US15926536

申请日：2018-03-20

Applicant: Ibiquity Digital Corporation

Inventor： Gabriel Olochwoszcz ,  Ashwini Pahuja

IPC: H04B1/16 ,  G10L19/16 ,  H04H20/30 ,  H04H60/12 ,  G10L19/008 ,  G10L19/24

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：US09755598B2

公开(公告)日：2017-09-05

申请号：US14974809

申请日：2015-12-18

Applicant: IBIQUITY DIGITAL CORPORATION

Inventor： Gabriel Olochwoszcz ,  Ashwini Pahuja ,  Scott Vincelette

IPC: H04H20/47 ,  H04H40/36 ,  H03G3/30 ,  G10L19/16 ,  H03G3/00

CPC classification number: H03G3/3005 ,  G10L19/167 ,  H03G3/002 ,  H04H20/22 ,  H04H20/26 ,  H04H20/47 ,  H04H40/36 ,  H04H2201/18

Abstract: A method for processing a digital audio broadcast signal includes: separating an analog audio portion and a digital audio portion of the digital audio broadcast signal; determining the loudness of the analog audio portion and the digital audio portion over a first short time interval; using the loudness of the analog and digital audio portions to calculate a short term average gain; determining a long term average gain; converting one of the long term average gain or the short term average gain to dB; if an output has been blended to digital, adjusting a digital gain parameter by a preselected increment to produce a digital gain parameter; if an output has not been blended to digital, setting the digital gain parameter to the short term average gain; providing the digital gain parameter to an audio processor; and repeating the above steps using a second short time interval.

公开(公告)号：US20230005365A1

公开(公告)日：2023-01-05

申请号：US17943364

申请日：2022-09-13

Applicant: iBiquity Digital Corporation

Inventor： Ashwini Pahuja ,  Armaan Pahuja ,  Catherine P. Gooi ,  Gabriel Olochwoszcz ,  Marek Milbar

IPC: G08G1/07

Abstract: A method comprises: generating a traffic sign message configured to configure an active traffic sign that is electronically configurable; encrypting the traffic sign message to produce an encrypted traffic sign message; sending the encrypted traffic sign message to a radio broadcast transmitter; and at the radio broadcast transmitter, transmitting the encrypted traffic sign message in a radio broadcast signal; and at the active traffic sign: receiving the radio broadcast signal and recovering the encrypted traffic sign message from the radio broadcast signal; decrypting the encrypted traffic sign message to produce the traffic sign message; and configuring the active traffic sign according to the traffic sign message.

公开(公告)号：US20170179899A1

公开(公告)日：2017-06-22

申请号：US14974809

申请日：2015-12-18

Applicant: IBIQUITY DIGITAL CORPORATION

Inventor： Gabriel Olochwoszcz ,  Ashwini Pahuja ,  Scott Vincelette

IPC: H03G3/30 ,  H03G3/00 ,  G10L19/16

CPC classification number: H03G3/3005 ,  G10L19/167 ,  H03G3/002 ,  H04H20/22 ,  H04H20/26 ,  H04H20/47 ,  H04H40/36 ,  H04H2201/18

Abstract: A method for processing a digital audio broadcast signal includes: separating an analog audio portion and a digital audio portion of the digital audio broadcast signal; determining the loudness of the analog audio portion and the digital audio portion over a first short time interval; using the loudness of the analog and digital audio portions to calculate a short term average gain; determining a long term average gain; converting one of the long term average gain or the short term average gain to dB; if an output has been blended to digital, adjusting a digital gain parameter by a preselected increment to produce a digital gain parameter; if an output has not been blended to digital, setting the digital gain parameter to the short term average gain; providing the digital gain parameter to an audio processor; and repeating the above steps using a second short time interval.

公开(公告)号：USRE49210E1

公开(公告)日：2022-09-13

申请号：US16556658

申请日：2019-08-30

Applicant: Ibiquity Digital Corporation

Inventor： Gabriel Olochwoszcz ,  Ashwini Pahuja ,  Scott Vincelette

IPC: H04H20/47 ,  H03G3/30 ,  H04H40/36 ,  H03G3/00 ,  G10L19/16 ,  H04H20/22 ,  H04H20/26

Abstract: A method for processing a digital audio broadcast signal includes: separating an analog audio portion and a digital audio portion of the digital audio broadcast signal; determining the loudness of the analog audio portion and the digital audio portion over a first short time interval; using the loudness of the analog and digital audio portions to calculate a short term average gain; determining a long term average gain; converting one of the long term average gain or the short term average gain to dB; if an output has been blended to digital, adjusting a digital gain parameter by a preselected increment to produce a digital gain parameter; if an output has not been blended to digital, setting the digital gain parameter to the short term average gain; providing the digital gain parameter to an audio processor; and repeating the above steps using a second short time interval.

公开(公告)号：USRE48655E1

公开(公告)日：2021-07-20

申请号：US16575185

申请日：2019-09-18

Applicant: Ibiquity Digital Corporation

Inventor： Scott Vincelette ,  Ashwini Pahuja ,  Gabriel Olochwoszcz

IPC: H04B1/16 ,  H04H20/22 ,  H04H60/58 ,  G10L19/16 ,  H04L7/00 ,  H03K9/00 ,  H04L27/00

Abstract: A method for processing a radio signal includes producing first and second streams of audio samples; decimating the first and second streams of audio samples to produce first and second streams of decimated streams of audio samples; estimating a first offset value between corresponding samples in the first and second streams of decimated streams of audio samples; shifting one of the first and second streams of audio samples by a first shift value; decimating the first and second streams of audio samples to produce third and fourth streams of decimated audio samples; estimating a second offset value; determining a final offset value based on an intersection of ranges of valid results of the first and second offset values; and shifting one of the first and second streams of audio samples by the final offset value to align the first and second streams of audio samples.

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：US20140056227A1

公开(公告)日：2014-02-27

申请号：US14067627

申请日：2013-10-30

Applicant: iBiquity Digital Corporation

Inventor： Chinmay Shah ,  Armond Capparelli ,  Joseph F. D'Angelo ,  Ashwini Pahuja ,  Jordan Scott ,  Girish Warrier

IPC: H04H20/42 ,  H04H40/27 ,  H04H20/33

CPC classification number: H04H20/426 ,  H04H20/33 ,  H04H40/27 ,  H04H60/27

Abstract: A method for receiving and processing a digital radio broadcasting signal includes: receiving a digital radio broadcasting signal including encoded content in a first format; processing the encoded content to convert the encoded content into a second format; storing the encoded content in a second format; and decoding the stored encoded content to recover decoded content. A receiver that implements the method is also provided.

Abstract translation: 一种用于接收和处理数字无线电广播信号的方法包括：以第一格式接收包括编码内容的数字无线电广播信号; 处理编码的内容以将编码的内容转换成第二格式; 以第二格式存储编码的内容; 并对存储的编码内容进行解码以恢复解码的内容。 还提供了一种实现该方法的接收器。

公开(公告)号：US11790774B2

公开(公告)日：2023-10-17

申请号：US17943364

申请日：2022-09-13

Applicant: iBiquity Digital Corporation

Inventor： Ashwini Pahuja ,  Armaan Pahuja ,  Catherine P. Gooi ,  Gabriel Olochwoszcz ,  Marek Milbar

IPC: G08G1/07

CPC classification number: G08G1/07

Abstract: A method comprises: generating a traffic sign message configured to configure an active traffic sign that is electronically configurable; encrypting the traffic sign message to produce an encrypted traffic sign message; sending the encrypted traffic sign message to a radio broadcast transmitter; and at the radio broadcast transmitter, transmitting the encrypted traffic sign message in a radio broadcast signal; and at the active traffic sign: receiving the radio broadcast signal and recovering the encrypted traffic sign message from the radio broadcast signal; decrypting the encrypted traffic sign message to produce the traffic sign message; and configuring the active traffic sign according to the traffic sign message.

公开(公告)号：US10177729B1

公开(公告)日：2019-01-08

申请号：US15899135

申请日：2018-02-19

Applicant: Ibiquity Digital Corporation

Inventor： Ashwini Pahuja

IPC: H04R3/00 ,  H03G3/00 ,  H03G3/30 ,  H03G3/34 ,  H04N5/60

Abstract: Systems and methods to process a digital audio broadcast signal having a plurality of digital audio signals can be implemented in a variety of applications. The digital audio broadcast signal having a main program service and a set of supplemental program services can be received at a digital audio system and processed to provide an audio signal to a set of speakers. The processing can include calculation of audio levels of audio signals of the main program service and the supplemental program services. One of the services can be selected with the audio signal of the selected service adjusted based on the calculated level of the selected service and a reference signal, prior to sending the audio signal to the set of speakers. In various embodiments, the reference signal can be an analog audio signal in the digital audio broadcast signal. Additional apparatus, systems, and methods are disclosed.