Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
74 words
A microstrip antenna for a motor vehicle-mounted GPS apparatus comprising a first conductive thin film which functions as an antenna element attached to one side of a thin dielectric plate and a second conductive thin film which functions as a ground plane attached to the other side of the thin dielectric plate, being characterized in that: said thin dielectric plate consists of a dielectric material that forms part of a motor vehicle body shell.
Claim 2
Dependent Claim
24 words
A microstrip antenna for a motor vehicle-mounted GPS apparatus as defined in claim 1, wherein said second conductive thin film is a transparent electrode.
Claim 3
Dependent Claim
26 words
A microstrip antenna for a motor vehicle-mounted GPS apparatus as defined in claim 1, wherein said second conductive thin film is a metal wire mesh electrode.
Claim 4
Dependent Claim
99 words
A GPS receiver for a motor vehicle-mounted GPS apparatus comprising: an outer unit including an antenna for receiving radio waves from artificial satellites and a preamplifier for amplifying the received signal; an inner unit including a demodulator for demodulating the received signal to derive a required information therefrom and a computer for reckoning a self-position from the demodulated signal; signal transfer means for transferring signals between said outer unit and inner unit by utilizing no wire; and a power source mounted at the outside of the motor vehicle body shell for supplying an electric power to said outer unit.
Claim 5
Dependent Claim
27 words
A GPS receiver for a motor vehicle-mounted GPS apparatus as defined in claim 2, wherein said power source consists of a solar cell and a secondary battery.
Claim 6
Dependent Claim
40 words
A GPS receiver for a motor vehicle-mounted GPS apparatus as claimed in claim 2, wherein said signal transfer means consists of a radio wave transmitter contained in said outer unit and a radio wave receiver contained in said inner unit.
Claim 7
Dependent Claim
29 words
A GPS receiver for a motor vehicle-mounted GPS apparatus as claimed in claim 6, wherein said radio wave is different in frequency from that of the received satellite signal.
Claim 8
Dependent Claim
40 words
A GPS receiver for a motor vehicle-mounted GPS apparatus as claimed in claim 2, wherein said signal transfer means consists of a light wave transmitter contained in said outer unit and a light wave receiver contained in said inner unit.
Claim 9
Dependent Claim
40 words
A GPS receiver for a motor vehicle-mounted GPS apparatus as claimed in claim 2, wherein said signal transfer means consists of an ultrasonic sound transmitter contained in said outer unit and an ultrasonic sound receiver contained in said inner unit.
Claim 10
Dependent Claim
40 words
A GPS receiver for a motor vehicle-mounted GPS apparatus as claimed in claim 2, wherein said signal transfer means consists of a pair of diametrically opposed plane electrodes sandwiching a dielectric material that forms part of motor vehicle body shell.