Portable radio vehicular installation apparatus with back-up battery power and method
A portable radio vehicular interface apparatus and method. The apparatus includes a plural interface connector conformed to the shape and electrical interfaces of the portable radio. The apparatus includes a battery housing that is coupled to provide power to the portable radio through a single sheath cable connected to the plural interface connector. The cable also encases an antenna conductor that couples the plural interface connector to an antenna terminal on the battery housing. The apparatus also includes a vehicle interface coupled to charge the battery from a vehicle power system.
1. A portable radio vehicular interface apparatus, for interfacing with a portable radio in a vehicle with a power system, the portable radio having an external antenna terminal for coupling radio signals with an external antenna cable, and having an external power terminal, the apparatus comprising:
a conformal connector having a first antenna connector and a first power connector configured to conform to the shape of the portable radio housing and electrically engage the external antenna terminal and external power terminal;
an interface enclosure having a second antenna connector, disposed on the exterior thereof, for engaging the external antenna cable, and having a battery disposed in the interior thereof and a charging circuit with a power input terminal and a power output terminal, and operable charge said battery and to deliver power to said power output terminal from either of said power input terminal or said battery;
a radio interface cable covered by a single sheath with a first end coupled to said conformal connector and a second end coupled to said interface enclosure and encasing an antenna conductor connected between said first antenna connector and said second antenna connector, and a first power conductor coupled between said first power connector and said power output terminal, and
a vehicle interface having a second power conductor coupled to said power input terminal and adapted to connect to the vehicle power system.
2. The apparatus of claim 1 wherein said vehicle interface is a cable coupled to said interface enclosure.
3. The apparatus of claim 1 wherein said vehicle interface includes a cigarette lighter adapter for engaging a cigarette lighter socket in the vehicle.
4. The apparatus of claim 1 wherein the portable radio has an audio output terminal, and wherein:
said conformal connector further includes a first audio connector for engaging the audio output terminal;
said interface enclosure further includes a second audio connector, and
said radio interface cable further includes an audio conductor coupled between said first audio connector and said second audio connector.
5. The apparatus of claim 1 wherein the portable radio has an FM modulator output terminal, and wherein:
said conformal connector further includes an FM modulator connector for engaging the FM modulator terminal;
said interface enclosure further includes an FM antenna input connector coupled to an FM output connector, and further includes an FM signal coupler disposed to couple FM signals to said FM antenna output connector, and wherein
said radio interface cable further includes an FM signal conductor coupled between said FM modulator connector and said FM signal coupler.
6. The apparatus of claim 1 wherein said interface enclosure further includes a circuit protector electrically coupled to said power input terminal.
7. The apparatus of claim 1 wherein said interface enclosure is formed with a flat profile, thereby enabling installation in narrow locations within the vehicle interior.
8. The apparatus of claim 1 wherein said conformal connector is designed to compliment the industrial design of the portable radio.
9. The apparatus of claim 1 wherein said interface enclosure further includes a visual power indicator coupled to said power input terminal, thereby indicating the availability of power from the vehicular power system.
10. The apparatus of claim 1 wherein said conformal connector further includes a visual power indicator coupled to said first power conductor, thereby indicating the availability of power from the vehicular power system.
11. The apparatus of claim 1 wherein said vehicle interface includes a cigarette lighter adapter plug for engaging a cigarette lighter socket in the vehicle.
12. The apparatus of claim, 11 wherein said interface enclosure and said cigarette lighter adapter plug are coupled together with a vehicle interface cable encasing said second power conductor.
13. The apparatus of claim 11 wherein said interface enclosure and said vehicle interface cable are coupled through a detachable electrical connector.
14. The apparatus of claim 1 wherein said radio interface cable and said interface enclosure are coupled through a detachable electrical connector.