Remotely sensed personal stylus
First Claim
1. A data processing system having at least one workstation equipped with an input system which controls access to said data processing system by validating a security code transmitted by a remotely sensed personal stylus, comprising:
- said input system comprising;
radiating means having a control input for radiating electromagnetic signals in an area proximate to said input system;
a remotely sensed personal stylus located separate from, but proximate to said workstation, for receiving electromagnetic signals radiated from said radiating means and for transmitting response signals and a security code signal in response thereto, said stylus including a receiving antenna, a means for providing a security code signal and a transmitter;
receiving means having an output for receiving transmission from said remotely sensed personal stylus;
a control processor coupled to said control input of said radiating means for executing a sequence of stored program instructions to output control signals, said control processor coupled to said receiving means for sampling said stylus transmissions to determine stylus location and to receive said security code signal;
program instructions including a log-on module which validates said unique coded signal to allow access to said data processing system;
a central processing unit having a data input coupled to said receiving means which executes a sequence of program instructions in response to data supplied by said stylus transmissions; and
,a workstation display device coupled to said central processing unit for displaying the results of said program instructions to the user.
4 Assignments
0 Petitions
Accused Products
Abstract
A data processing system is disclosed which is equipped with a secure user friendly input system. The input system comprises an array of horizontal and vertical conductor supported on a flexible, transparent overlay membrane secured to the viewing surface of the display of an individual workstation and a remotely sensed personal stylus. The stylus is equipped to receive electromagnetic signals from the array and transmit signals containing information concerning the stylus position on the overlay and stylus ID to a receiver at the workstation. The input system also includes a control processor operating in stored program instructions which control the detection and log-on procedures for the remotely sensed personal stylus.
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Citations
37 Claims
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1. A data processing system having at least one workstation equipped with an input system which controls access to said data processing system by validating a security code transmitted by a remotely sensed personal stylus, comprising:
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said input system comprising; radiating means having a control input for radiating electromagnetic signals in an area proximate to said input system; a remotely sensed personal stylus located separate from, but proximate to said workstation, for receiving electromagnetic signals radiated from said radiating means and for transmitting response signals and a security code signal in response thereto, said stylus including a receiving antenna, a means for providing a security code signal and a transmitter; receiving means having an output for receiving transmission from said remotely sensed personal stylus; a control processor coupled to said control input of said radiating means for executing a sequence of stored program instructions to output control signals, said control processor coupled to said receiving means for sampling said stylus transmissions to determine stylus location and to receive said security code signal; program instructions including a log-on module which validates said unique coded signal to allow access to said data processing system; a central processing unit having a data input coupled to said receiving means which executes a sequence of program instructions in response to data supplied by said stylus transmissions; and
,a workstation display device coupled to said central processing unit for displaying the results of said program instructions to the user. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An input system for controlling access to a data processing system by validating an authorized security code transmitted by a remotely sensed personal stylus comprising:
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radiating means having a control input for radiating electromagnetic signals in an area proximate to said input system; a remotely sensed personal stylus located separate from, but proximate to said workstation for receiving electromagnetic signals radiated from said radiating means and for transmitting response signals and a coded security signal in response thereto, said stylus having a receiving antenna, a means for providing a security code signal and a transmitter; receiving means having an output for receiving transmissions from said remotely sensed personal stylus; and a control processor coupled to said control input of said radiating means for executing a sequence of stored program instructions to output control signals and coupled to said receiving means for sampling said stylus transmissions to determine stylus location and to receive said coded security signal. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A remotely sensed personal stylus for use with an input system having radiating means for radiating electromagnetic signals and receiving means for receiving transmissions from said remotely sensed stylus, comprising:
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an antenna for receiving electromagnetic signals radiated from said radiating means; means for providing a security code signal; a transmitter for sending response signals to said input system in response thereto; whereby access to a data processing system is controlled by said input system by validating said security code. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31)
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32. A method of controlling access to a computer equipped with an input system which validates a security code transmitted by a remotely sensed personal stylus, said input system having a radiating means for radiating electromagnetic signals and receiving means for receiving transmissions from said remotely sensed stylus, comprising the steps of:
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activating said stylus within operating distance of said radiating means; transmitting a security code signal which identifies said stylus as an authorized user to said receiving means; validating said security code signal against authorized security codes; and
,granting access to said computer if said security code signal is an authorized security code. - View Dependent Claims (33, 34, 35, 36, 37)
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Specification