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Remotely upgradable universal remote control

DC
  • US 5,228,077 A
  • Filed: 09/24/1990
  • Issued: 07/13/1993
  • Est. Priority Date: 12/02/1987
  • Status: Expired due to Term
First Claim
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1. A universal remote control system including a universal remote control comprising input means including a set of keys or pushbuttons for inputting commands into the remote control, infrared signal output means for supplying an infrared signal to a controlled device including IR lamp driver circuitry, a central processing unit (CPU) coupled to said input means and to said signal output means, a single, non-volatile, read-write memory coupled to said CPU and data coupling means including terminal means comprising a receiving port coupled to said CPU for enabling code data for creating appropriate IR lamp driver instructions for causing said infrared signal output means to emit infrared signals which will cause specific functions to occur in a specific controlled device, for operating a variety of devices to be controlled, to be supplied from outside said remote control through said receiving port of said terminal means directly to said CPU for direct entry to said memory to enable said remote control to control various devices to be controlled upon the inputting of commands through the keys of the input means and a data transmission system for coupling a telephone line to said terminal means of said remote control whereby the code data can be supplied to said memory of said remote control via a telephone line.

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