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：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：US09768948B2

公开(公告)日：2017-09-19

申请号：US14862800

申请日：2015-09-23

Applicant: iBiquity Digital Corporation

Inventor： Scott Vincelette

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

CPC classification number: H04L7/0079 ,  G10L19/167 ,  H04B1/16 ,  H04H20/22 ,  H04H60/58 ,  H04H2201/18 ,  H04L7/0016

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：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：US20170085363A1

公开(公告)日：2017-03-23

申请号：US14862800

申请日：2015-09-23

Applicant: iBiquity Digital Corporation

Inventor： Scott Vincelette

IPC: H04L7/00 ,  H04B1/16 ,  G10L19/16

CPC classification number: H04L7/0079 ,  G10L19/167 ,  H04B1/16 ,  H04H20/22 ,  H04H60/58 ,  H04H2201/18 ,  H04L7/0016

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.