Combination hand-held phone and radar system
A hand-held apparatus has a Doppler radar secured within one wall of a phone sleeve. A phone may be placed within the sleeve and in signal communication with the radar via a connector molded in the sleeve. In operation, an RF signal may be directed toward a distant moving target and a bounce signal received. The speed of the target is calculated from the Doppler frequency shift and displayed by the phone to the user.
1. A hand-held system measures the speed of a distant moving target, the system comprising:
a phone sleeve having a front wall and a rear wall;
a phone within the phone sleeve, a display of the phone visible through an open portion of the front wall, a camera of the phone visible through an aperture of the rear wall;
a radar engaged within a rear wall of the sleeve, an antenna of the radar facing away from the front wall; and
the phone and the radar enabled for mutual signal communication.
2. The system of claim 1 wherein the mutual signal communication is by at least one of electrical conduction, wireless transmission, and proximity inductive signal transfer.
3. The system of claim 1 wherein a circuit of the radar includes the antenna, an amplifier, a frequency shifter, a demodulator, and a means for converting between analog and digital signals.
4. A phone sleeve for a hand-held system for measuring a speed of a distant, moving target, the phone sleeve comprising:
a front wall and a rear wall:
a space between the walls sufficient for insertion of a phone therein;
an open portion of the front wall sufficient for viewing a display of the phone;
an aperture in the rear wall sufficient for enabling picture taking by a rear-looking phone camera; and
a space within the rear wall sufficient for receiving a radar circuit.
5. The phone sleeve of claim 4 wherein the radar circuit is molded within the rear wall.
6. The phone sleeve of claim 4 further comprising an electrical connector of the radar circuit located for receiving the phone in signal conduction.
7. A process for determining the speed of a distant moving target using a hand-held device, the process comprising
a) installing a software into a phone memory of a hand-held portable phone;
b) inserting the phone into a sleeve having a radar system therein;
c) initiating the software thereby producing a graphical user interface on a display of the phone;
d) acquiring the target using a camera of the phone and storing a picture of the target;
e) transmitting a primary signal toward the target;
f) receiving a reflected signal from the target;
g) deriving a frequency shift between the primary and reflected signals;
h) calculating a speed of the target from the frequency shift;
i) presenting the target speed and the picture of the target on the display.
8. The process of claim 7 further comprising storing the target speed and the picture in the phone memory.