PROJECTOR

• US 20090033809A1
• Filed: 12/06/2007
• Published: 02/05/2009
• Est. Priority Date: 07/31/2007
• Status: Abandoned Application

• Current Assignee: Coretronic Corporation
• Original Assignee: Coretronic Corporation
• Inventors: Tsai, Wen-Wei
• Application Number:
  US11/951,341
• Publication Number:
  US 20090033809A1
• Time in Patent Office: Days
• US Class Current: 348/789
• CPC Class Codes: G09G 2320/0606 Manual adjustment
• CPC Class Codes: G09G 2320/0626 for control of overall brightness
• CPC Class Codes: G09G 2320/066 for control of contrast
• CPC Class Codes: G09G 2320/0666 for control of colour parameters, e.g. colour temperature
• CPC Class Codes: G09G 3/001 using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background slide projectors per se G03B23/00 = 42 HP
• CPC Class Codes: H04N 21/47 End-user applications
• CPC Class Codes: H04N 9/3141 Constructional details thereof details not peculiar to the presence of an electronic spatial light modulator G03B21/14

Abstract

A projector having a wheel module on its case is provided. The wheel module includes a wheel, an encoder, and a microswitch. When the wheel is pressed for a first time, the microswitch outputs a starting signal for turning on the projector. Then, the wheel is rotated for a first time, and the encoder outputs a menu signal for displaying the on screen display (OSD) menu on a screen. Then, when the wheel is rotated again, the encoder outputs a selection signal according to a rotation amount of the wheel for selecting a function or setting a parameter of the OSD menu. When the wheel is pressed again, the microswitch outputs a checking signal for executing a selected function, entering a sub-menu corresponding to the selected function, or storing the parameter.

Claims

1. A projector, comprising:

a casing, having an opening;

a central processing unit, disposed in the casing, the central processing unit generating an on screen display menu in response to a menu signal, and the on screen display menu comprising a plurality of functions or a parameter;

a projection module, disposed in the casing and coupled to the central processing unit, and the projection module being capable of projecting the on screen display menu on a screen; and

a wheel module, disposed in the casing and coupled to the central processing unit, the wheel module comprising a wheel, an encoder and a microswitch, wherein a part of the wheel is exposed from the opening, the wheel for turning on the microswitch has a central shaft, and one end of the central shaft penetrates the encoder;

wherein when the wheel is pressed for a first time, the microswitch outputs a starting signal for turning on the projector;

then, the wheel is rotated for a first time, and the encoder outputs the menu signal for displaying the on screen display menu on the screen;

when the wheel is rotated again, the encoder outputs a selection signal according to a rotation amount of the wheel for selecting one of the functions or setting the parameter; and

when the wheel is pressed again, the microswitch outputs a checking signal for executing a selected function, entering a sub-menu corresponding to the selected function, or storing the parameter.

2. The projector as claimed of claim 1, wherein the wheel module further comprises a wheel carrier, the wheel is disposed on the wheel carrier, and is able to rotate on the wheel carrier via the central shaft.

3. A projector, comprising:

a casing, having an opening;

a central processing unit, disposed in the casing, the central processing unit generating an on screen display menu in response to a menu signal, and the on screen display menu comprising a plurality of functions or a parameter;

a projection module, disposed in the casing and coupled to the central processing unit, and the projection module being capable of projecting the on screen display menu on a screen; and

a turning knob module, disposed in the casing and coupled to the central processing unit, the turning knob module comprising a turning knob, an rotary encoder and a microswitch, wherein the turning knob is exposed from the opening, and is capable of driving the rotary encoder to rotate, and the turning knob being used for turning on the microswitch;

wherein when the turning knob is pressed for a first time, the microswitch outputs a starting signal for turning on the projector;

then, the turning knob is rotated for a first time, and the rotary encoder outputs the menu signal for displaying the on screen display menu on the screen;

when the turning knob is rotated again, the rotary encoder outputs a selection signal according to a rotation amount of the turning knob for selecting one of the functions or setting the parameter; and

when the turning knob is pressed again, the microswitch outputs a checking signal for executing a selected function, entering a sub-menu corresponding to the selected function, or storing the parameter.

4. The projector as claimed in claim 3, wherein the turning knob protrudes out of the casing.

5. The projector as claimed in claim 3, wherein the turning knob is co-planar with a surface of casing.

6. The projector as claimed in claim 3, wherein the turning knob has slide-proof lines on a surface of the turning knob.