Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Seth Suppappola0
Franklyn H. Story0
Date of Patent
June 30, 2009
Patent Application Number
11180004
Date Filed
July 12, 2005
Patent Primary Examiner
Patent abstract
A path change is detected by multiplying the energy of a signal on the output of a summation circuit in one channel of a telephone by a constant to produce a product. The product is compared with the energy of a signal on the input of the summation circuit. A path change is indicated when the energy of the product exceeds the energy of a signal on the input of the summation circuit. The comparison is made in successive frames of an audio signal and a path change is indicated when the energy of a signal on the input of the summation circuit is exceeded in two or more successive frames.
Timeline
No Timeline data yet.
Further Resources
No Further Resources data yet.
