公开(公告)号：HK1052602A1

公开(公告)日：2003-09-19

申请号：HK03104758

申请日：2003-07-04

Applicant: QUALCOMM INC

Inventor： GUPTA SAMIR K

IPC: H04M20060101 ,  H04B20060101 ,  H04M1/60 ,  H04B3/20 ,  H04M9/00 ,  H04M9/08

Abstract: A system and method for cancelling an echo signal. An input waveform is provided to an acoustic processor, and a determination is made whether the input waveform includes information representative of an echo signal. If the input waveform includes information representative of an echo signal, an output waveform is formed by attenuating a residual waveform with the acoustic processor. The residual waveform is attenuated by an attenuation factor that gradually changes from an initial attenuation value to a final attenuation value during the attenuation step. A system and method for adjusting an acoustic signal from a muted state to an unmated state by varying an attenuation factor applied to an acoustic signal by an acoustic processor. The acoustic signal is provided to an acoustic processor. An output waveform is formed from the acoustic processor by adjusting the attenuation factor from a muted state to a first attenuation value associated with the non-muted state. After the attenuation factor is adjusted to the first attenuation value, the output waveform is formed by gradually changing the attenuation factor from the first attenuation value to a second attenuation value. The input waveform is attenuated by a smaller amount when the second attenuation value is applied to the acoustic signal than when the first attenuation value is applied to the acoustic signal.

公开(公告)号：NO20023569L

公开(公告)日：2002-09-24

申请号：NO20023569

申请日：2002-07-26

Applicant: QUALCOMM INC

Inventor： GUPTA SAMIR K

IPC: H04B3/20 ,  H04M9/00 ,  H04M1/60 ,  H04M9/08 ,  H04B3/23

Abstract: A system and method for cancelling an echo signal. An input waveform is provided to an acoustic processor, and a determination is made whether the input waveform includes information representative of an echo signal. If the input waveform includes information representative of an echo signal, an output waveform is formed by attenuating a residual waveform with the acoustic processor. The residual waveform is attenuated by an attenuation factor that gradually changes from an initial attenuation value to a final attenuation value during the attenuation step. A system and method for adjusting an acoustic signal from a muted state to an unmated state by varying an attenuation factor applied to an acoustic signal by an acoustic processor. The acoustic signal is provided to an acoustic processor. An output waveform is formed from the acoustic processor by adjusting the attenuation factor from a muted state to a first attenuation value associated with the non-muted state. After the attenuation factor is adjusted to the first attenuation value, the output waveform is formed by gradually changing the attenuation factor from the first attenuation value to a second attenuation value. The input waveform is attenuated by a smaller amount when the second attenuation value is applied to the acoustic signal than when the first attenuation value is applied to the acoustic signal.

公开(公告)号：IN2328MUN2014A

公开(公告)日：2015-08-14

申请号：IN2328MUN2014

申请日：2014-11-17

Applicant: QUALCOMM INC

Inventor： LI REN ,  NELSON HUI YA L ,  GUPTA SAMIR K ,  DAGAN NOAM ,  KRULCE DARRELL L

IPC: G06F3/043 ,  G06F3/048

Abstract: The disclosure is directed to storing trace information. An aspect includes determining whether or not a pen is within a threshold distance of the touchscreen storing trace information generated by a user s touch in a touch buffer if the pen is not within the threshold distance of the touchscreen and clearing the touch buffer and storing trace information generated by the pen in the touch buffer if the pen is within the threshold distance of the touchscreen.

公开(公告)号：CA2399016C

公开(公告)日：2009-09-22

申请号：CA2399016

申请日：2001-01-26

Applicant: QUALCOMM INC

Inventor： GUPTA SAMIR K

IPC: H04M1/60 ,  H04M9/08 ,  H04B3/20 ,  H04B3/23 ,  H04M9/00

Abstract: A system and method for cancelling an echo signal. An input waveform is provided to an acoustic processor, and a determination is made whether the input waveform includes information representative of an echo signal. If the input waveform includes information representative of an echo signal, an output waveform is formed by attenuating a residual waveform with the acoustic processor. The residual waveform is attenuated by an attenuation factor that gradually changes from an initial attenuation value to a final attenuation value during the attenuation step. A system and method for adjusting an acoustic signal from a muted state to an unmuted state by varying an attenuation factor applied to an acoustic signal by an acoustic processor. The acoustic signal is provided to an acoustic processor. An output waveform is formed from the acoustic processor by adjusting the attenuation factor from a muted state to a first attenuation value associated with the non-mute d state. After the attenuation factor is adjusted to the first attenuation value, the output waveform is formed by gradually changing the attenuation factor from the first attenuation value to a second attenuation value. The input waveform is attenuated by a smaller amou nt when the second attenuation value is applied to the acoustic signal than when the first attenuation value is applied to the acoustic signal.

公开(公告)号：AU2005242180B2

公开(公告)日：2007-08-09

申请号：AU2005242180

申请日：2005-12-09

Applicant: QUALCOMM INC

Inventor： GUPTA SAMIR K

IPC: H04M9/08 ,  H04B3/23

公开(公告)号：AU2005242180A1

公开(公告)日：2006-01-12

申请号：AU2005242180

申请日：2005-12-09

Applicant: QUALCOMM INC

Inventor： GUPTA SAMIR K

IPC: H04M9/08 ,  H04B3/23

公开(公告)号：BR0107830A

公开(公告)日：2003-03-18

申请号：BR0107830

申请日：2001-01-26

Applicant: QUALCOMM INC

Inventor： GUPTA SAMIR K

IPC: H04M1/60 ,  H04B3/20 ,  H04M9/00 ,  H04M9/08 ,  H04B3/23

Abstract: A system and method for cancelling an echo signal. An input waveform is provided to an acoustic processor, and a determination is made whether the input waveform includes information representative of an echo signal. If the input waveform includes information representative of an echo signal, an output waveform is formed by attenuating a residual waveform with the acoustic processor. The residual waveform is attenuated by an attenuation factor that gradually changes from an initial attenuation value to a final attenuation value during the attenuation step. A system and method for adjusting an acoustic signal from a muted state to an unmated state by varying an attenuation factor applied to an acoustic signal by an acoustic processor. The acoustic signal is provided to an acoustic processor. An output waveform is formed from the acoustic processor by adjusting the attenuation factor from a muted state to a first attenuation value associated with the non-muted state. After the attenuation factor is adjusted to the first attenuation value, the output waveform is formed by gradually changing the attenuation factor from the first attenuation value to a second attenuation value. The input waveform is attenuated by a smaller amount when the second attenuation value is applied to the acoustic signal than when the first attenuation value is applied to the acoustic signal.

公开(公告)号：AT345642T

公开(公告)日：2006-12-15

申请号：AT01906733

申请日：2001-01-26

Applicant: QUALCOMM INC

Inventor： GUPTA SAMIR K

IPC: H04M1/60 ,  H04B3/20 ,  H04M9/00 ,  H04M9/08 ,  H04B3/23

Abstract: A system and method for cancelling an echo signal. An input waveform is provided to an acoustic processor, and a determination is made whether the input waveform includes information representative of an echo signal. If the input waveform includes information representative of an echo signal, an output waveform is formed by attenuating a residual waveform with the acoustic processor. The residual waveform is attenuated by an attenuation factor that gradually changes from an initial attenuation value to a final attenuation value during the attenuation step. A system and method for adjusting an acoustic signal from a muted state to an unmated state by varying an attenuation factor applied to an acoustic signal by an acoustic processor. The acoustic signal is provided to an acoustic processor. An output waveform is formed from the acoustic processor by adjusting the attenuation factor from a muted state to a first attenuation value associated with the non-muted state. After the attenuation factor is adjusted to the first attenuation value, the output waveform is formed by gradually changing the attenuation factor from the first attenuation value to a second attenuation value. The input waveform is attenuated by a smaller amount when the second attenuation value is applied to the acoustic signal than when the first attenuation value is applied to the acoustic signal.

公开(公告)号：NO20023569A

公开(公告)日：2002-09-24

申请号：NO20023569

申请日：2002-07-26

Applicant: QUALCOMM INC

Inventor： GUPTA SAMIR K

IPC: H04M1/60 ,  H04M9/08 ,  H04B3/20 ,  H04M9/00 ,  H04B3/23

CPC classification number: H04M9/082

公开(公告)号：AU3460601A

公开(公告)日：2001-08-07

申请号：AU3460601

申请日：2001-01-26

Applicant: QUALCOMM INC

Inventor： GUPTA SAMIR K

IPC: H04M1/60 ,  H04B3/20 ,  H04M9/00 ,  H04M9/08 ,  H04B3/23

Abstract: A system and method for cancelling an echo signal. An input waveform is provided to an acoustic processor, and a determination is made whether the input waveform includes information representative of an echo signal. If the input waveform includes information representative of an echo signal, an output waveform is formed by attenuating a residual waveform with the acoustic processor. The residual waveform is attenuated by an attenuation factor that gradually changes from an initial attenuation value to a final attenuation value during the attenuation step. A system and method for adjusting an acoustic signal from a muted state to an unmated state by varying an attenuation factor applied to an acoustic signal by an acoustic processor. The acoustic signal is provided to an acoustic processor. An output waveform is formed from the acoustic processor by adjusting the attenuation factor from a muted state to a first attenuation value associated with the non-muted state. After the attenuation factor is adjusted to the first attenuation value, the output waveform is formed by gradually changing the attenuation factor from the first attenuation value to a second attenuation value. The input waveform is attenuated by a smaller amount when the second attenuation value is applied to the acoustic signal than when the first attenuation value is applied to the acoustic signal.