Touch controlled device with pressure sensing electronic input pen

• US 6,417,845 B1
• Filed: 12/21/1999
• Issued: 07/09/2002
• Est. Priority Date: 11/10/1999
• Status: Expired due to Fees

• Current Assignee: ET&T Technology Company Limited
• Original Assignee: ET&T Technology Company Limited
• Inventors: Sun, Kevin, Liou, Johannes, Wang, Wei-Lin, Chen, Jung-Yu
• Primary Examiner(s): Liang, Regina
• Application Number:
  US09/467,959
• Time in Patent Office: 931 Days
• Field of Search: 345/173, 345/179, 345/174, 345/175, 345/180, 178/18-1-, 178/18.05, 178/18.07, 178/19.01, 178/19.04
• US Class Current: 345/173
• CPC Class Codes: G06F 3/03545 Pens or stylus

Abstract

A touch controlled device with a pressure sensing electronic input pen comprises a main control unit, a pressure signal processing unit, an electronic input pen, a coordinate and button signal processing unit, a touch control panel, and an output interface, etc. The main control unit serves to process the outputting signals from the pressure signal processing unit and the coordinate and button signal processing unit. The electronic input pen has a pressure sensor and a button, the pressure sensor serves to sense the force applied for being outputted with a pressure frequency signal. The touch control panel is connected to the coordinate and button signal processing unit, the tip of the electronic input pen touches the touch control panel so that the touch control panel outputs a coordinate signal and then transfers this signal to the coordinate and button signal processing unit. The coordinate and button signal processing unit processes the control signal from the button of the electronic input pen and the coordinate signal outputted from the touch control panel, the processed signals are transferred to the main control unit and which is transferred to a computer through an output interface.

Claims

1. A touch controlled device with a pressure sensing electronic input pen comprising:

a main control unit, a pressure signal processing unit, an electronic input pen, a coordinate and button signal processing unit, a touch control panel, and an output interface, said main control unit to process output signals from said pressure signal processing unit and said coordinate and button signal processing unit;

said pressure signal processing unit connected to the main control unit to convert a pressure frequency signal from said electronic input pen to a count value through a counter to become a pressure signal sent to a primary control unit;

said electronic input pen connected to said pressure signal processing unit, and having a pressure sensor and buttons, said pressure sensor serving to sense an applied force outputted with a pressure frequency signal;

said buttons serving to output control signals to said coordinate and button signal processing unit;

said coordinate and button signal processing unit receiving said control signal, and processing said control signal outputted from said buttons of said electronic input pen and said coordinate signal from said touch control panel, and transferring said processed signals to said main control unit;

said touch control panel connected to said coordinate and button signal processing unit, and a tip of said electronic input pen for touching said touch control panel with said touch control panel outputting a coordinate signal and transferring said coordinate signal to said coordinate and button signal processing unit; and

said output interface connected to said main control unit to convert signals from said main control unit into digital signals which are transferred to a computer.