We claim:
1. A mobile scanner comprising;
a main case housing an image sensing module and a motion mechanism; the image sensing module comprising:
a one-dimensional image sensor array;
an array of rod lenses mounted in front of the sensor array; and
a first illumination source;
the main case having an elongated receiving opening and an elongated exiting opening, the sensor array imaging a scanning document through the array of rod lenses when the scanning document is caused by the motion mechanism to pass from the receiving opening and exit from the exiting opening;
a base case housing a second illumination source, the base case demountably mounted to the main case.
2. The mobile scanner as recited in claim 1; wherein the first illumination provides illumination to the scanning object when the scanning object is opaque.
3. The mobile scanner as recited in claim 2; wherein the second illumination provides illumination to the scanning object when the scanning object is transparent.
4. The mobile scanner as recited in claim 1; further comprising:
an interface engine implemented in a PC Card; and
a multi-line cable coupling the image sensing module and the motion mechanism to the interface engine.
5. The mobile scanner as recited in claim 4; wherein the interface engine provides a power supply and control signals to the image sensing module and the motion mechanism to operate when the interface engine is received in a computing device.
6. The mobile scanner as recited in claim 5; wherein the interface engine comprises a control circuit producing the control signals in response to system control signals from the computing device operating a control process.
7. The mobile scanner as recited in claim 6; wherein the control process is executed by a processor in the computing device and is caused to:
detect sensor parameters of the image sensing module;
calibrate the image sensing module with respect to the sensor parameters; and
generate a set of optimum timing parameters for the first illumination source and the second illumination source.
8. A mobile scanner comprising:
a portable housing;
an image sensing module mounted in the housing and comprising:
a one-dimensional image sensor array;
a lens mounted in front of the image sensor array; and
an illumination source comprising three colored lights that are turned on independently and successively by an illumination control signal;
a motion mechanism working in synchronization with the image sensing module, the motion mechanism causing a scanning document illuminated by the illumination source to pass through the lens so that the scanning document can be imaged by the image sensor array to generate an image thereof; and
wherein the image sensing module and the motion mechanism receives are powered by a power supplied from a computing device when the mobile scanner is coupled thereto.
9. The mobile scanner as recited in claim 8, wherein the image sensing module receives illumination control signals from the computing device to properly illuminate the scanning document and the motion mechanism receives motion control signals to cause the scanning document to move in synchronization with operations of the image sensing module.
10. The mobile scanner as recited in claim 9, wherein the computing device executes an application that generates the illumination control signals and the motion control signals as well.
11. The mobile scanner as recited in claim 9, wherein the image sensor array produces respectively three intensity signals when the three colored lights are turned on independently and successively by the illumination control signals.
12. The mobile scanner as recited in claim 11, wherein the three intensity signals are transported to the computing device in which digital versions of the three intensity signals are loaded into the application.
13. The mobile scanner as recited in claim 8 further comprising a detecting means for detecting whether the scanning document is received in the housing.
14. The mobile scanner as recited in claim 13 wherein the housing is made of a light material.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A heavy duty radial tire comprising:
a tread portion with tread edges, the tread portion provided with traverse grooves extending between the tread edges and longitudinal grooves extending between the traverse grooves so as to form shoulder blocks arranged along each of the tread edges and inner blocks each disposed on the axially inside of one of the shoulder blocks,
the longitudinal grooves between the shoulder blocks and the inner blocks, having a depth Wga in a range of from 0.7 to 1.0 times the depth Dy of the traverse grooves, and the longitudinal grooves each inclined at an acute angle with respect to the circumferential direction of the tire to have an axial extent range Y whose axial width W1 is in a range of from 1.0 to 10.0 times the depth Wga,
in a cross section of the tire under a normally inflated unloaded condition:
the tread portion provided with a tread profile made up of a center profile Si and a shoulder profile So, the shoulder profile So extending continuously from each of the axial ends of the center profile Si through an inflection point P to one of the tread edges;
the center profile Si being a circular arc of a radius Rc having the center on the tire equatorial plane;
the shoulder profile So being a substantially straight line or alternatively an arc having less curvature than the center profile Si; and
the inflection point P located within the axial extent range Y of the longitudinal grooves.
2. The heavy duty radial tire according to claim 1, wherein
the shoulder profile So is a straight line.
3. The heavy duty radial tire according to claim 1, wherein:
a difference OS of the tire radius measured at the tire equator from that at the tread edge is in a range of from 0.4 to 0.8 times a difference OS1 of said tire radius measured at the tire equator from a radius measured at the intersecting-point J of a radial line passing through the tread edge with said circular arc defining the center profile Si.