Infrared communications link with attachment configuration

Abstract

An infrared connector for establishing a communications link between a processing device having an infrared port and another device, including an attachment configuration, an infrared interface and a communications cable. The infrared interface is mechanically connected to the attachment configuration and the communications cable is connected to the infrared interface. The invention also includes a method to operate a system to prevent interference between infrared signals of a processor-input device and a processing device, by time multiplexing the signals of the two systems.

1 . A method to prevent interference between infrared signals of different devices, the devices including: a processor input device having a first section and a second section, wherein said first section has a first infrared interface and an external infrared interface and said second section has a second infrared interface; and a processing device having an infrared port, the method for operating comprising the steps of: 
 (a) sending first signals between the first infrared interface and the second infrared interface; and    (b) sending second signals between the external infrared interface and the infrared port; wherein time multiplexing is established between said first signals and said second signals.    
   
   
       2 . The method of  claim 1  wherein the second infrared interface is configured for transmitting only.  
   
   
       3 . The method of  claim 1  further comprising the steps of: 
 (a) forming said second signals according to a system of data encoding; and    (b) forming said first signals to be void of data content according to said system of data encoding.    
   
   
       4 . The method of  claim 1  further comprising the step of forming said first signals so as to appear void of data content to the processing device.  
   
   
       5 . The method of  claim 1  wherein: 
 (a) the processor input device is a digitizer system;    (b) the first section is a base unit of the digitizer system;    (c) the second section is a moveable element with a stylus; and    (d) the digitizer system records the movement of the stylus.    
   
   
       6 . The method of  claim 5  wherein the stylus is configured to write on a substrate.