公开(公告)号：US09626977B2

公开(公告)日：2017-04-18

申请号：US15133825

申请日：2016-04-20

Applicant: TLS Corp.

Inventor： Barry Blesser ,  Robert Dye

IPC: G06F17/00 ,  G10L19/018 ,  G10L19/02

CPC classification number: G10L19/018 ,  G10L19/0204

Abstract: A method for a machine or group of machines to watermark an audio signal includes receiving an audio signal and a watermark signal including multiple symbols, and inserting at least some of the multiple symbols in multiple spectral channels of the audio signal, each spectral channel corresponding to a different frequency range. Optimization of the design incorporates minimizing the human auditory system perceiving the watermark channels by taking into account perceptual time-frequency masking, pattern detection of watermarking messages, the statistics of worst case program content such as speech, and speech-like programs.

公开(公告)号：US20170025129A1

公开(公告)日：2017-01-26

申请号：US15218577

申请日：2016-07-25

Applicant: TLS Corp.

Inventor： Barry A. Blesser ,  Robert Dye

IPC: G10L19/018 ,  G10L19/02

CPC classification number: G10L19/018 ,  G10L19/0204

Abstract: A method for a machine or group of machines to watermark speech audio transmissions includes receiving a speech audio signal, receiving a watermark signal including a message of multiple bits, each bit having one of two values, each value represented by one of two symbols, each of the symbols corresponding to a respective audio segment, and at a time t1, transmitting a first transmission including at least some of the multiple bits in multiple spectral channels of the speech audio signal, each spectral channel corresponding to a different frequency range, wherein a first one of the multiple spectral channels carries a first bit from the multiple bits while at the same time a second one of the multiple spectral channels carries a second bit from the multiple bits different from the first bit.

Abstract translation: 一种用于水印语音音频传输的机器或机器组的方法包括接收语音音频信号，接收包括多个比特的消息的水印信号，每个比特具有两个值之一，每个值由两个符号之一表示，每个值由两个符号之一表示，每个 对应于相应音频段的符号，并且在时间t1，发送包括语音音频信号的多个频谱信道中的至少一些多位的第一传输，每个频谱信道对应于不同的频率范围，其中a 多个频谱信道中的第一个从多个比特携带第一比特，而同时多个频道中的第二个频道从不同于第一比特的多个比特携带第二比特。