1. A motorcycle secondary windshield mount system comprising:
a secondary windshield having upper and lower surfaces and having a top and a bottom and opposite sides; and
two pair of brackets, each pair of brackets having a bottom and a top bracket, each bottom bracket having upper and lower slots alignable with a plane of a primary windshield, each top bracket having a first section positioned in contact with the secondary windshield and a second section transverse to the first section, each pair of brackets having upper and lower legs, each upper leg having a lower end slidable and pivotable within the upper slot, each upper leg having an upper end pivotable in the second section adjacent the top of the secondary windshield, each lower leg having a lower end slidable and pivotable within the lower slot, each lower leg having an upper end pivotable in the second section adjacent the bottom of the secondary windshield.
2. The system as set forth in claim 1 and further including a primary windshield formed with a cutout, the cutout being formed with side edges and a transverse edge, and wherein each lower bracket is formed with a recess adapted to receive a side edge of the cutout.
3. The system as set forth in claim 1 and further including a primary windshield formed with a cutout, the cutout being formed with side edges and a transverse edge, and wherein each lower bracket is formed with a first part positionable in contact with the primary windshield and a second part transverse to the first part, the slots being formed in the second part.
4. The system as set forth in claim 1 and further including a primary windshield formed with a cutout, the cutout being formed with side edges and a transverse edge, and wherein each lower bracket is formed with a recess positionable to receive a side edge of the cutout, each lower bracket also having a forward slot with a reciprocable forward nut and a rearward slot with a reciprocable rearward nut, the lower end of the upper leg pivotably coupled to the forward nut, the lower end of the lower leg pivotably coupled to the rearward nut, and with jack screws with thumb bolts for selectively moving the nuts and the lower ends of the legs.
5. A motorcycle secondary windshield mount system for independently and infinitely adjusting the height and angle and separation of a secondary windshield with respect to a primary windshield of a motorcycle, the system comprising, in combination:
a motorcycle having a primary windshield with upper and lower surfaces and a top and a bottom and tapering opposite sides, the distance between the opposite sides being greater adjacent to the top than the bottom, a rectangular cutout in the primary windshield extending downwardly from the top to form parallel side edges of a length defining a height and a transverse lower edge of a length defining a width;
a secondary windshield having upper and lower surfaces and a top and a bottom and tapering opposite sides, the distance between the opposite sides of the secondary windshield being greater adjacent to the top than the bottom, the distance between the opposite sides of the secondary windshield being greater than the width of the cutout but less than the width of the primary windshield, the distance between the top and bottom of the secondary windshield being greater than the height of the cutout but less than the height of the primary windshield, the windshields being fabricated of an essentially rigid, transparent material;
two pair of brackets, each pair of brackets having a bottom bracket and a top bracket, each bottom bracket having a recess to receive an associated side edge of the cutout, each bottom bracket having upper and lower slots aligned with a plane of the primary windshield, each top bracket having a first section positioned in contact with the secondary windshield, each top bracket having a second section transverse to the first section, each pair of brackets having an upper leg and a lower leg, each upper leg having a lower end slidable and pivotable within the upper slot, each upper leg having an upper end pivotable in the second section adjacent the top of the secondary windshield, each lower leg having a lower end slidable and pivotable within the lower slot, each lower leg having an upper end pivotable in the second section adjacent the bottom of the secondary windshield, a cross piece coupling the brackets to secure the brackets in position within the cutout, adjustment screws for positioning the legs in an intended orientation, the angle between the legs and the primary windshield determining the separation between the windshields, the spacing between the adjustment screws determining the angle between the windshields, the location of the adjustment screws along the slots determining the height of the secondary windshield; and
bolts extending through the first section of each top bracket and the secondary windshield for coupling the top brackets to the secondary windshield, set screws through each bottom bracket for coupling the bottom brackets to the primary windshield.
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 pulse rate sensor for measuring a physiological parameter of an individual comprising:
an optical emitter for transmitting light from a light source into body tissue;
a photo detector for receiving reflected light from said body tissue and producing a pulse signal indicative of reflected light;
an accelerometer for measuring regular motion of the individual and producing an accelerometer output signal indicative of the regular motion;
a piezo sensor for measuring erratic motion of the user and producing a contact type motion sensor output signal indicative of the erratic motion; and
a microprocessor for receiving the pulse signal, the accelerometer output signal, and the piezo sensor output signal, and determining the pulse rate of the individual, wherein the pulse rate is determined by:
conditioning the pulse signal wherein conditioning comprises:
sampling and filtering said pulse signals with a non-adaptive low-pass filter to produce filtered signals;
applying direct current compensation to said filtered signals;
discriminating motion based on said direct current compensation signal; and
if no motion is detected, applying peak detection algorithms to calculate said pulse rate, else applying frequency analysis algorithms to calculate said pulse rate wherein said peak detection algorithms comprise:
taking a first derivative over said filtered signal;
computing a second derivative from said first derivative; finding peaks within said filtered signal using said first and second derivatives; and
calculating instantaneous pulse rate as the difference between peaks in said filtered signal;
and removing portions of the conditioned pulse signal caused by regular motion and erratic motion of the individual.
2. The pulse rate sensor of claim 1 wherein said transmitted light source lies in the near infrared region, the emitter comprises a plurality of light emitting diodes, the photo detector is a reflective infrared sensor and the accelerometer is a two-dimensional accelerometer.
3. The pulse rate sensor of claim 1 wherein said sensor is encapsulated in a watch module for wrist-based sensing.
4. The pulse rate sensor of claim 3 wherein said watch module includes a universal serial bus port to automatically upload data, a radio frequency identification tag to uniquely identify said watch module, wherein said watch module is further capable of receiving firmware updates.
5. The pulse rate sensor of claim 1 wherein said contact type motion sensor comprises a piezo sensor and said contact type motion sensor output signal comprises a piezo sensor output signal.
6. The pulse rate sensor of claim 1 wherein the microprocessor removes portions of the conditioned photo detector output caused by regular motion and erratic motion of the individual by transforming the photo detector output signal, the accelerometer output signal, and the piezo sensor output signal to the frequency domain and removing unwanted frequency components.
7. The pulse rate sensor of claim 1 wherein the conditioning step for determining pulse rate further comprises:
automatically adjusting output of the light source to maintain optimal signal strength of the pulse signal.
8. The pulse rate sensor of claim 1 wherein the step of applying direct compensation to said filtered signals signal comprises:
subtracting a fixed direct current compensation from the photo detector output signal to produce a DC adjusted photo detector output signal and amplifying the DC adjusted photo detector output signal to produce an output (2); and
applying a programmable direct current compensation to the output (2) to produce a DC adjusted output (3) and amplifying the DC adjusted output (3) to produce an output (4).