3Com A4Tech Serial Port Mouse Driver
Bus Version`. “Grey Eye” Mouse. Parallel: $??? Serial: $ Microsoft Gen 2 Introduction of PS/2 input port, with launch of PS/2 computers. N. M 04 Serial Mouse . 9/ sp? .. division of 3Com. Keyboard USB, Keyboard, PS/2, Mouse, Scroll Point, Mice. Add to Compare. A4TECH B Bloody Gaming Black Keyboard A4TKLA $ $ In Other Category: Keyboard & Mouse Page 2 3COM 3CRWDRA - Wireless 54 Mbps ADSL Modem + Router 4 Port. , Beli A4Tech AS
|Supported systems:||Windows XP (32/64-bit), Windows Vista, Windows 7, Windows 8.1, Windows 10|
|Price:||Free* [*Free Registration Required]|
3Com A4Tech Serial Port Mouse Driver
Referring to FIG. Hinge member is received through an opening in upper housing and secured thereto by locking tabs which snap-fit into recesses in the hinge member.
When the hinge member is retained by the upper housing 3Com A4Tech Serial Port Mouse, and the upper housing is secured to the lower housinga pair of switch-actuating plungersone extending downward from each of the primary and secondary buttons andare positioned over corresponding ones of the switches and to engage and depress the switches. When upper and lower housings and are secured together, wheel extends upward through an oval hole formed between primary and secondary buttons and as shown in FIG.
A channel extends transversely across the hinge member between the left and the right 3Com A4Tech Serial Port Mouse thereof to provide an area where the material e. The hinge 3Com A4Tech Serial Port Mouse is resilient and provides an upwardly directed return force to return the buttons and to their original position after being depressed. Importantly, a post extending downwardly from the upper housing is split longitudinally with respect to the housing to form left and right post portionswith a gap therebetween.
The hinge member has left and right post portionseach with a resilient, laterally outward primary hinge portion and a resilient, laterally inward secondary hinge portion having a hole therebetween sized to receive a corresponding one of the left and right post portions therethrough when the hinge member is secured to the upper housing By splitting the downwardly extending posts into left and right post portionsthe left and right secondary hinge portions of the hinge member can extend therebetween and provide an upward return force to the buttons and at a laterally inward side thereof to better distribute the return force applied by the hinge memberas will be described below.
A longitudinally extending space is provided between the left and right secondary hinge portions to isolate the primary and secondary buttons and so that movement of either button does not cause movement of the other button. The mouse generates X and Y axis position signals for the computer system generally in a manner typical of most current mice.
In operation, mouse is moved or slid along a planar surface, causing the ball protruding through the hole to rotate.
- Serial Mouse eBay
- USB2 - Input device with forward/backward control - Google Patents
- Keyboard / Mice
- Serial Mouse
- Serial RS232 Mouse
- You are here
- Keyboard / Mice
As the encoder wheels rotate, the phototransistors 3Com A4Tech Serial Port Mouse pulses of light from the LEDs as the notches sweep past the LEDs. Each phototransistor converts these pulses of light into varying electrical signals, which are input to additional circuitry Together, determination of direction and magnitude of mouse travel are referred to in the art as quadrature calculation.
Quadrature calculation is performed by additional circuitry using known techniques to produce count signals indicating movement of mouse along X and Y axes. The count signals are either positive or negative, indicating movement of mouse in either forward or reverse direction along a particular axis.
Serial port mouse products for sale eBay
Mouse generates Z-axis position signals for the computer system in a manner similar to that for generating X and Y 3Com A4Tech Serial Port Mouse signals. The Z-axis transducer assembly of FIG. Additional circuitry determines the direction and magnitude of rotation of wheel from these signals using quadrature calculation. Although mouse has been described in connection with a track ball used to determine movement of the mouse, the present invention can also be used with solid-state mice that detect movement of the mouse by collecting images of portions of the surface over which the mouse travels.
To better understand the operation of mouse and computer system 20 of FIG. Based on this manipulation, mouse generates a mouse packet that is passed to serial interface at a step An example of a 3Com A4Tech Serial Port Mouse packet under one embodiment of the present invention is shown in FIG.
For USB connections the mouse information is sent to the mouse driver using publicly available USB protocols for mice. Byte is the first byte provided by mousebyte is the second byte, byte is the third byte, and byte is the fourth byte.
US7639235B2 - Input device with forward/backward control - Google Patents
The columns of bits are organized with the least significant bits on the far right and the most significant bits on the far left. Thus, column includes the least significant bits of each of the four bytes and column includes the most significant bits of each of the four bytes. Within mouse packetfirst byte includes left button bitright button bitand middle button bit Fourth bit of byte is set to one. Fifth bit of byte is the ninth bit of a 3Com A4Tech Serial Port Mouse signed value that is completed by byte The nine-bit value produced by 3Com A4Tech Serial Port Mouse combination of bit and byte represents the direction and magnitude of movement of the mouse along the X coordinate.
Sixth bit of first byte is the ninth bit of a nine-bit signed value that is completed by byte The combination of bit and third byte produces a value that indicates the magnitude and direction of movement of the mouse along the Y coordinate. Seventh bit and eighth bit of first byte indicate whether the nine-bit values formed by 3Com A4Tech Serial Port Mouse and byte and by bit and byterespectively, have incurred an overflow condition.
This occurs when more than nine 3Com A4Tech Serial Port Mouse of movement 3Com A4Tech Serial Port Mouse been detected by the mouse. In this condition, the respective nine-bit value should be set to their maximum magnitude for the direction of movement. The least significant four bits,and of fourth byte represent the direction and magnitude of movement of mouse wheel The value represented by bits,and is a signed value wherein a positive value indicates wheel motion toward the user and a negative value indicates wheel motion away from the user.
Bits and are the fifth and sixth bits of byterespectively, and indicate closure of switches andrespectively, of mouse