Transceiver battery charging apparatus and method
First Claim
1. A battery charger for a hand-held transceiver having a rechargeable battery, comprising:
- a housing having means for receiving the transceiver;
connector means for electrically connecting said battery charger to the transceiver, said connector means including a microphone terminal, an RF terminal, a mode control terminal and a charger output terminal;
a microphone unit having a microphone and a mode switch, said microphone being electrically coupled to said microphone terminal;
multiwire cable means for attaching said microphone unit to said housing;
an RF amplifier having an input and an output;
an antenna lead connected to said RF amplifier output;
mode control means for correspondingly controlling the operating modes of said battery charger and the transceiver for transmit and receive modes, said mode control means having an input connected to said mode switch and an output connected to said mode control terminal;
means responsive to said mode control means for coupling said RF terminal to said RF amplifier input during transmit mode and to said antenna lead during receive mode; and
charging circuit means for selectively charging the transceiver battery from a source of a first voltage during transmit mode and from a source of a second, higher voltage during receive mode, said charging circuit means having an output connected to said charger output terminal.
2 Assignments
0 Petitions
Accused Products
Abstract
An apparatus and method for recharging a rechargeable battery in a hand-held transceiver while maintaining communications capability through the transceiver. The battery charger is housed in a charging unit to which the transceiver can be removably attached. A dual-mode charging circuit generates a first voltage during transmit mode and a second, higher voltage during receive mode, and includes a DC-DC converter for generating the second voltage. The charger includes a push-to-talk (PTT) switch and mode control circuitry for simultaneously controlling the operating modes of the charger and transceiver, and additionally includes a separate microphone, speaker, and audio and RF amplifiers for providing greater RF power and audio power while the transceiver battery is being recharged.
-
Citations
27 Claims
-
1. A battery charger for a hand-held transceiver having a rechargeable battery, comprising:
-
a housing having means for receiving the transceiver; connector means for electrically connecting said battery charger to the transceiver, said connector means including a microphone terminal, an RF terminal, a mode control terminal and a charger output terminal; a microphone unit having a microphone and a mode switch, said microphone being electrically coupled to said microphone terminal; multiwire cable means for attaching said microphone unit to said housing; an RF amplifier having an input and an output; an antenna lead connected to said RF amplifier output; mode control means for correspondingly controlling the operating modes of said battery charger and the transceiver for transmit and receive modes, said mode control means having an input connected to said mode switch and an output connected to said mode control terminal; means responsive to said mode control means for coupling said RF terminal to said RF amplifier input during transmit mode and to said antenna lead during receive mode; and charging circuit means for selectively charging the transceiver battery from a source of a first voltage during transmit mode and from a source of a second, higher voltage during receive mode, said charging circuit means having an output connected to said charger output terminal. - View Dependent Claims (2, 3, 4, 5, 6)
-
-
7. A battery charger for a hand-held transceiver having a rechargeable battery, comprising:
-
mode control means for controlling the operating mode of said battery charger in correspondence with the operating mode of the transceiver for transmit and receive modes, said mode control means including means for detecting the state of a mode switch; and charging circuit means for selectively charging the transceiver battery from a source of a first voltage during transmit mode and from a source of a second, higher voltage during receive mode. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
-
-
19. A two-way radio system, comprising a charging unit, a portable transceiver, and means for removably attaching said transceiver to said charging unit,
said transceiver including a rechargeable battery; -
a transceiver mode control circuit; and first and second externally accessible terminals connected respectively to said rechargeable battery and said transceiver mode control circuit; said charging unit including mode control means for controlling the operating mode of said charging unit in correspondence with the operating mode of said transceiver for transmit and receive modes, said mode control means including means for detecting the state of a mode switch; charging circuit means for selectively charging said transceiver battery from a source of a first voltage during transmit mode and from a source of a second, higher voltage during receive mode; a charger output terminal connected to an output of said charging circuit means; and a mode control terminal connected to said mode control means; and said attaching means including first connector means for electrically connecting said charger output terminal and said mode control terminal to said first and second terminals, respectively. - View Dependent Claims (20, 21, 22, 23, 24)
-
-
25. A method of charging a battery in an operating transceiver, comprising the steps:
-
connecting a dual-mode battery charger to the transceiver battery; detecting the state of a mode switch having first and second states respectively indicative of transmit and receive modes; controlling the operating mode of said battery charger in correspondence with the operating mode of said transceiver for transmit and receive modes; and selectively charging said transceiver battery from a source of a first voltage during transmit mode and from a source of a second, higher voltage during receive mode. - View Dependent Claims (26, 27)
-
Specification