Resources Contact Us Home
Keyboard with interchangeable connection function

Image Number 3 for United States Patent #6373471.

A keyboard with interchangeable connection specification, comprises an input/output circuit board for DIN, PS/2 or USB connection specification and replaceably assembled within a main body of the keyboard. The input/output circuit board has signal transmitting end connected to the signal receiving end of a membrane circuit of the keyboard. The keyboard further comprises an openable cover on a panel of the main body of said keyboard and corresponding to the location of the input/output circuit board. The openable cover is opened to replace the input/output circuit board mounted within the keyboard for required connection specification.

  Recently Added Patents
Catalyst and process of hydrocarbon feedstock reformation to hydrogen and carbon monoxide
High-speed comparator with asymmetric frequency response
Reduced sorbent utilization for circulating dry scrubbers
Systems, methods, and apparatus to prepare a mobile device for provisioning
Native NAD-dependent GAPDH replaced with NADP-dependent GAPDH plus NADK
Methods and apparatus for intelligent selection of goods and services in mobile commerce
Methods of isolating bipotent hepatic progenitor cells
  Randomly Featured Patents
Vertical replacement daisy wheel element
System and method for remote authorization for unlocking electronic data
Hand-held rope wick applicator
High-frequency circuit module
Air filter for an internal combustion engine
Wide-angle imaging device
Skewer for automobile bicycle racks
Purification process for cyclosporin
Bore rider switch
Method and apparatus for combining and for separating a low data rate digital channel with or from the high data rate digital channel of a transmission link