Resources Contact Us Home
Speech synthesis integrated circuit device

Image Number 18 for United States Patent #4331836.

A system incorporating an integrated circuit device or chip which digitally synthesizes human speech using a linear predictive filter. The linear predictive filter comprises a single filter stage only which contains a single multiplier for selectively multiplying a plurality of coefficients, initiating the multiplication of one coefficient at a time, by using a feedback loop with multiplexing techniques so as to input multiplexed signals to the multiplier--as contrasted to a cascade of filter stages. Thus, the single multiplier of the linear predictive filter is utilized repetitively to provide the calculations required. The system also includes a memory for storage of digital filter coefficients, a controller for selectively accessing the coefficients, and a speaker for generating audible sounds.

  Recently Added Patents
Self-service channel marketplace
Method for dynamic multi-level pricing for wireless communications according to quality of service
Moving structure and micro-mirror device using the same
System, method and computer program product for sharing a single instance of a database stored using a tenant of a multi-tenant on-demand database system
Memory device and method for repairing a semiconductor memory
Vehicle hood
For a given cell in a spreadsheet, evaluating an unlimited number of conditional formatting rules and applying multiple corresponding formats to the cell
  Randomly Featured Patents
Index interferometric instrument including both a broad band and narrow band source
Hydraulic jackhammer
Method and apparatus for performing operations
Crank drive for a photographic camera
High strength acid stable composite materials
Display package for foliage
Digital phase locked loop
System and method for using carbon dioxide sequestered from seawater in the remineralization of process water
Viewer orientation indicator for an illustration
Frozen beverage machine control system and method