MOBILE WIRELESS COMMUNICATIONS DEVICE WITH RF IMMUNE CHARGING CONTACTS
First Claim
1. A mobile wireless communications device, comprising:
- a housing;
at least one circuit board carried by the housing and including radio frequency (RF) circuitry carried by the at least one circuit board and comprising a transmitter and receiver, and a processor carried by the at least one circuit board and operative with the RF circuitry;
an antenna mounted within the housing and operative with the RE circuitry;
a charging circuit mounted within the housing for charging a battery carried by and powering the mobile wireless communications device and comprising at least one charging contact carried by the housing and configured for engaging an external charging cradle when connected thereto, said charging contact further comprising an internal connector extending to at least one circuit board and connecting to charging circuitry; and
an RF filter connected to said charging contact and comprising a ferrite material surrounding at least a portion of said internal connector to minimize RF coupling from the at least one charging contact to the antenna and reduce transmitter harmonics emission and receiver de-sense.
4 Assignments
0 Petitions
Accused Products
Abstract
In accordance with a non-limiting aspect, a mobile wireless communications device includes a housing, at least one circuit board carried by the housing, radio frequency (RF) circuitry, and a processor. An antenna is operative with the RF circuitry. A charging circuit charges a battery carried by and powers the device and includes at least one charging contact carried by the housing and configured for engaging an external charging cradle when connected thereto. It includes an internal connector extending to at least one circuit board and connecting to the charging circuitry. An RF filter includes a ferrite material surrounding at least a portion of the internal connector to minimize RE coupling from the at least one charging contact to the antenna and reduce transmitter harmonics emission and receiver de-sense.
14 Citations
25 Claims
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1. A mobile wireless communications device, comprising:
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a housing; at least one circuit board carried by the housing and including radio frequency (RF) circuitry carried by the at least one circuit board and comprising a transmitter and receiver, and a processor carried by the at least one circuit board and operative with the RF circuitry; an antenna mounted within the housing and operative with the RE circuitry; a charging circuit mounted within the housing for charging a battery carried by and powering the mobile wireless communications device and comprising at least one charging contact carried by the housing and configured for engaging an external charging cradle when connected thereto, said charging contact further comprising an internal connector extending to at least one circuit board and connecting to charging circuitry; and an RF filter connected to said charging contact and comprising a ferrite material surrounding at least a portion of said internal connector to minimize RF coupling from the at least one charging contact to the antenna and reduce transmitter harmonics emission and receiver de-sense. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A mobile wireless communications device, comprising:
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a housing comprising a substantially rectangular configured housing case having a rear surface, longitudinal side edges and lower end and having a battery opening in the rear surface to which a battery for powering the device is received; at least one circuit board carried by the housing and including radio frequency (RF) circuitry carried by the at least one circuit board and comprising a transmitter and receiver, and a processor carried by the at least one circuit board and operative with the RF circuitry; an antenna mounted at the lower end of the housing case and operative with the RF circuitry; a charging circuit mounted within the housing for charging any battery received within the battery opening and comprising opposing charging contacts of opposite polarity carried by the housing at the lower end of the housing case adjacent said antenna and configured for engaging an external charging cradle when connected thereto, each charging contact further comprising an internal connector extending to at least one circuit board and connecting to charging circuitry and any battery for charging same; and an RF filter associated with each respective charging contact and comprising a ferrite material surrounding at least a portion of a respective internal connector to which said RF filter is associated to minimize RF coupling from each charging contact to the antenna and reduce transmitter harmonics emission and receiver de-sense. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A method of operating a mobile wireless communications device, which comprises:
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providing a housing, at least one circuit board carried by the housing and including radio frequency (RF) circuitry carried by the at least one circuit board and comprising a transmitter and receiver, a processor carried by the at least one circuit board and operative with the RF circuitry, an antenna mounted within the housing and operative with the RF circuitry, and a charging circuit mounted within the housing for charging a battery carried by and powering the mobile wireless communications device and comprising at least one charging contact carried by the housing and configured for engaging an external charging cradle when connected thereto, said charging contact further comprising an internal connector extending to the at least one circuit board and connecting to charging circuitry and any battery for charging same; and minimizing RF coupling from the at least one charging contact to the antenna while reducing transmitter harmonics emission and receiver de-sense by surrounding at least a portion of the internal connector of the charging connector with an RE filter formed from a ferrite material. - View Dependent Claims (24, 25)
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Specification