1. A side door collision detecting system for a vehicle, comprising:
an internal pressure sensor that detects an increase of a door internal pressure of a side door of the vehicle, which is changed by a side collision to the side door, wherein:
the internal pressure sensor outputs an internal pressure signal based on the door internal pressure; and
the internal pressure sensor is installed in an interior space of the side door;
a physical value sensor that detects a physical value, which is changed by the side collision, and outputs a physical value signal based on the physical value, wherein the physical value sensor is also installed in the interior space of the side door; and
a collision determining circuit that determines whether the side collision occurs based on the internal pressure signal and the physical value signal.
2. The side door collision detecting system according to claim 1, wherein:
the collision determining circuit calculates:
a corresponding binary signal of each of the internal pressure signal and the physical value signal based on each corresponding predetermined value; and
a logical conjunction based on the corresponding binary signal of the internal pressure signal and the corresponding binary signal of the physical value signal; and
the collision determining circuit determines whether the side collision occurs based on the logical conjunction result.
3. The side door collision detecting system according to claim 1, wherein:
the collision determining circuit calculates:
means for calculating a first binary signal based on a first threshold value for the internal pressure signal;
a second binary signal based on a second threshold value for the internal pressure signal, which is lower than the first threshold value for the internal pressure signal;
a third binary signal based on a third threshold value for the physical value signal;
a fourth binary signal based on a fourth threshold value for the physical value signal, which is lower than the third threshold value for the physical value signal;
a first logical conjunction based on the first and fourth binary signals;
a second logical conjunction based on the second and third binary signals; and
calculating a logical addition based on the first and second logical conjunction results, wherein the collision determining circuit determines whether the side collision occurs based on the logical addition result.
4. The side door collision detecting system according to claim 1, wherein:
the internal pressure sensor, which detects the door internal pressure, is a first internal pressure sensor; and
the physical value sensor is a second internal pressure sensor, which detects the door internal pressure.
5. The side door collision detecting system according to claim 1, wherein the physical value, which is detected by the physical value sensor, is other than the door internal pressure.
6. The side door collision detecting system according to claim 5, wherein the physical value, which is detected by the physical value sensor, includes one of an acceleration characteristic, an acoustic characteristic, an optical characteristic and a displacement characteristic.
7. The side door collision detecting system according to claim 1, further comprising a sensor housing, which includes the internal pressure sensor and the physical value sensor.
8. The side door collision detecting system according to claim 1, wherein:
the side door collision detecting system further comprises a sensor housing that includes the internal pressure sensor and the physical value sensor, which are integrally formed on a single chip in the sensor housing;
the internal pressure sensor is a semiconductor pressure sensor; and
the physical value sensor is a semiconductor acceleration sensor.
9. An occupant protecting system for a vehicle, comprising:
the side door collision detecting system according to claim 1; and
an occupant protecting device that performs a protection of an occupant of the vehicle based on a determining result of the collision determining circuit of the side door collision detecting system.
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 drawing system, comprising:
a display;
first and second input devices held by corresponding hands of a user; and
a computer determining corresponding positions of said input devices on said display, and drawing a polyline between the corresponding positions on said display with the first input device designating a potential curve and the second device moving along the potential curve and converting a portion of the potential curve into the polyline.
2. A drawing system, comprising:
a display;
first and second input devices held by corresponding hands of a user; and
a computer determining corresponding positions of said input devices on said display, and drawing a polyline between the corresponding positions on said display with the first input device specifying a curve influence direction and the second input device converting the curve influence direction into the polyline.
3. A drawing system, comprising:
a display;
first and second input devices held by corresponding hands of a user; and
a computer determining corresponding positions of said input devices on said display, and drawing a polyline between the corresponding positions on said display with the first input and second input devices creating the polyline by tracing a curve using both input devices.
4. A drawing system, comprising:
a display;
first and second input devices held by corresponding hands of a user; and
a computer determining corresponding positions of said input devices on said display, and drawing a polyline between the corresponding positions on said display, where the corresponding positions of said input devices and at least one additional previous position contribute to a shape of the polyline.
5. A drawing system, comprising:
a display;
first and second input devices held by corresponding hands of a user; and
a computer determining corresponding positions of said input devices on said display, and drawing a curve between the corresponding positions on said display, where the corresponding positions of said input devices and at least one additional previous position contribute to a shape of the curve.
6. A drawing method, comprising:
inputting first and second input positions using corresponding hands of a user; and
determining corresponding positions on a display; and
drawing a polyline between the corresponding positions on the display where the corresponding positions of said input devices and at least one additional previous position contribute to a shape of the polyline.