Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Method and apparatus for manipulating pitch and/or duration of a signal










Image Number 3 for United States Patent #5479564.

Method and apparatus for manipulating an input signal (e.g. an audio (equivalent) signal) to obtain an output signal having a different pitch and/or duration. The method includes (a) positioning a chain of successive overlapping time windows with respect to the input signal; (b) deriving segments signals from the input signal and the windows; and (c) synthesizing the output signal by chained superposition of the segments signals. Each of the windows (except for the first window in the chain) is positioned by incrementing a position of the window from a corresponding position of a preceding window in the chain by a time interval. The time interval is substantially equal to a local pitch period for a portion of the input signal with respect to which the window is positioned. Accordingly, each of the windows of the chain (except for the first window) is positioned so that it begins at a predetermined time interval from a preceding window in the chain. The apparatus includes units for carrying out each of these processes.








 
 
  Recently Added Patents
Vehicle tail lamp
Ottoman
Markers of acute myeloid leukemia stem cells
Stacked structure and stacked method for three-dimensional chip
Compounds for the reduction of .beta.-amyloid production
Oscillator circuit which compensates for external voltage supply, temperature and process
Image-monitoring method for electroporation treatment and as associated image-monitoring appliance
  Randomly Featured Patents
Display and method for driving display
Faucet handle
Systems and methods for wireless transfer of content between aircraft
Method and apparatus for receiving a CDMA signal
Protective cover for a fuel pump filler gun and method for protecting same
Process for presetting a calender and calender for implementing the process
Pyridinylbisphosphonates for use as a therapeutical agent
Golf club head and a method for producing the same
Catheterization unit
Apparatus and method for diffused aeration