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Push-button switch member, portable information terminal having push-button switch member and payment system using portable information terminal

  • US 6,784,874 B1
  • Filed: 09/14/2000
  • Issued: 08/31/2004
  • Est. Priority Date: 04/10/2000
  • Status: Expired due to Fees
First Claim
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1. A portable information terminal comprising:

  • an electronic display operable to produce a function display;

    a touch panel having a push-button switch comprising a movable key top portion, through which the function display produced by said electronic display is displayed, a stationary contact, and a movable contact disposed under said key top portion opposed to said stationary contact, said movable contact being capable of being depressed by said key top portion toward said stationary contact; and

    a communication means operatively connected to said push-button switch for communicating via endless interactive communication with other equipment having a communication function, wherein said key top portion, said movable contact and said stationary contact are positioned in an overlapped positional relationship, wherein one of said movable contact and said stationary contact is capable of being electrically connected to a circuit that is operable to perform a function corresponding to the function display such that, when said movable contact is depressed such that said movable contact and said stationary contact become in contact with each other, the circuit performs the function corresponding to the function display, wherein said portable information terminal is operable to receive function display information from the other equipment via the interactive communication when said portable information terminal is within a communication proximity to the other equipment, and wherein said electronic display is operable to produce the function display based on the received function display information.

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