Hands free accessory for wireless telephones
First Claim
1. A vehicle separable hands free unit for a mobile wireless telephone having internal audio circuitry for an internal speaker and an internal microphone, comprising:
- a base unit, a vehicle separable connector quickly connectable to the vehicle'"'"'s power supply for supplying power to the base unit, said base unit including a hands free speaker and a hands free microphone, AHF control means in the base unit for commanding the telephone to disconnect the telephone'"'"'s internal speaker and internal microphone and connect the internal audio circuits to the base unit and to activate the base unit hands free speaker and hands free microphone, PHF control means in the base unit for commanding the telephone to connect the telephone'"'"'s internal speaker and internal microphone to the internal audio circuits and to deactivate the base unit hands free speaker and hands free microphone, and a manually operable switch in the base unit for selecting alternatively the AHF control or the PHF control.
2 Assignments
0 Petitions
Accused Products
Abstract
An aftermarket hands free unit for mobile wireless telephone use in a vehicle. The hands free unit commands the telephone to enter either an active hands free mode, AHF, or alternatively, a privacy hands free mode, PHF, in response to a user-operated switch on the unit. In one embodiment, these commands are generated by a microprocessor in the unit that sends an ID inquiry to the phone that enables the unit to identify and be used with different model phones. This microprocessor also repeats AHF and PHF commands to the telephone to maintain the desired mode. The hands free speaker in the unit is uniquely clam shelled between the housing and a circuit board, and mode switching is effected by a clever optical switch mounted in a finger recess in the unit housing. Duplexing is fixed by the unit to appropriately marry the capabilities of the phone.
27 Citations
27 Claims
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1. A vehicle separable hands free unit for a mobile wireless telephone having internal audio circuitry for an internal speaker and an internal microphone, comprising:
- a base unit, a vehicle separable connector quickly connectable to the vehicle'"'"'s power supply for supplying power to the base unit, said base unit including a hands free speaker and a hands free microphone, AHF control means in the base unit for commanding the telephone to disconnect the telephone'"'"'s internal speaker and internal microphone and connect the internal audio circuits to the base unit and to activate the base unit hands free speaker and hands free microphone, PHF control means in the base unit for commanding the telephone to connect the telephone'"'"'s internal speaker and internal microphone to the internal audio circuits and to deactivate the base unit hands free speaker and hands free microphone, and a manually operable switch in the base unit for selecting alternatively the AHF control or the PHF control.
- View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A vehicle separable hands free unit for a mobile wireless telephone having internal audio circuitry for an internal speaker and an internal microphone, comprising:
- a base unit, a vehicle separable connector quickly connectable to the vehicle'"'"'s power supply for supplying power to the base unit, said base unit including a hands free speaker and a hands free microphone, a microprocessor in the base unit for sending an ID request packet to the telephone and receiving a phone ID packet from the phone, said microprocessor utilizing the same ID packet to generate an AHF packet to the telephone for commanding the telephone to disconnect the telephone'"'"'s internal speaker and internal microphone and connect the internal audio circuits to the base unit and to activate the base unit hands free speaker and hands free microphone.
- View Dependent Claims (9, 10, 11, 12, 13)
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14. A vehicle separable hands free unit for a mobile wireless telephone having internal audio circuitry for an internal speaker and an internal microphone, comprising:
- a base unit, a vehicle separable connector quickly connectable to the vehicle'"'"'s power supply for supplying power to the base unit, said base unit including a hands free speaker and a hands free microphone, a microprocessor in the base unit for sending an AHF packet to the telephone for commanding the telephone to disconnect the telephone'"'"'s internal speaker and internal microphone and connect the internal audio circuits to the base unit, and to activate the base unit hands free speaker and hands free microphone, said microprocessor repeatedly sending the AHF packet to the telephone for maintaining the telephone in an AHF mode.
- View Dependent Claims (15)
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16. An aftermarket hands free unit for a mobile wireless telephone, comprising:
- a base unit having an integral generally annular nose insertable into a vehicle power socket, said base including a housing with upper and lower housing portions, a circuit board clam shelled between the upper and lower housing portions, and a speaker clam shelled between the circuit board and the upper housing portion.
- View Dependent Claims (17, 18, 19, 21)
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20. An aftermarket hands free unit for a mobile wireless telephone, comprising:
- a base unit having an integral generally annular nose insertable into a vehicle power socket, said base including a housing, a finger insertable recess in the housing with a switch thereon for operating the hands free unit.
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22. A vehicle separable hands free unit for a mobile wireless telephone having internal audio circuitry for an internal speaker and an internal microphone, comprising:
- a base unit, a vehicle separable connector quickly connectable to the vehicle'"'"'s power supply for supplying power to the base unit, said base unit including a hands free speaker and a hands free microphone, and a duplexing circuit in the base unit for attenuating or interrupting the hands free microphone level at a predetermined audio level of the hands free speaker.
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23. A vehicle separable hands free unit for a mobile wireless telephone having internal audio circuitry for an internal speaker and an internal microphone, comprising:
- a base unit, a vehicle separable connector quickly connectable to the vehicle'"'"'s power supply for supplying power to the base unit, said base unit including a hands free speaker and a hands free microphone, and a circuit in the base unit permitting connection of the base unit to a phone during a call without interrupting the call.
- View Dependent Claims (24)
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25. A vehicle separable hands free unit for a mobile wireless telephone having internal audio circuitry for an internal speaker and an internal microphone, comprising:
- a base unit, a vehicle separable connector quickly connectable to the vehicle'"'"'s power supply for supplying power to the base unit, said base unit including a hands free speaker and a hands free microphone, and a circuit in the base unit for reducing echo from the speaker.
- View Dependent Claims (26, 27)
Specification