MOBILE WIRELESS COMMUNICATIONS DEVICE HAVING IMPROVED RF IMMUNITY OF AUDIO TRANSDUCERS TO ELECTROMAGNETIC INTERFERENCE (EMI)
7 Assignments
0 Petitions
Accused Products
Abstract
A mobile wireless communications device includes a housing and circuit board carried by the housing and having radio frequency (RF) circuitry and a processor operative with each other. Audio circuitry is carried by the circuit board and an audio transducer assembly, such as a speaker, has electrical contacts that electrically engage the audio circuitry for carrying audio signals between the audio circuitry and audio transducer assembly. A filter is mounted at the audio transducer assembly and reduces radio frequency (RF) electromagnetic interference to the audio transducer assembly during device operation.
-
Citations
53 Claims
-
1-31. -31. (canceled)
-
32. A mobile wireless communications device comprising:
-
a housing; at least one circuit board carried by the housing; radio frequency (RF) circuitry and a processor operative therewith and carried by said at least circuit board; an audio transducer assembly carried by said at least one circuit board and comprising an audio transducer, a transducer housing for said audio transducer, and at least one electrical contact pad member on said transducer housing and coupled to said audio transducer; audio circuitry comprising at least one signal trace on said at least one circuit board and engaging said electrical contact pad member; at least one first filter coupled with said at least one signal trace; and at least one second filter mounted at said electrical contact pad member. - View Dependent Claims (33, 34, 35, 36, 37, 38)
-
-
39. A mobile wireless communications device comprising:
-
a housing; at least one circuit board carried by the housing; radio frequency (RF) circuitry and a processor operative therewith and carried by said at least circuit board; an audio transducer assembly carried by said at least one circuit board and comprising an audio transducer, a transducer housing for said audio transducer, and at least one electrical contact pad member on said transducer housing and coupled to said audio transducer;
audio circuitry comprising at least one signal trace on said at least one circuit board and engaging said electrical contact pad member;at least one first filter coupled with said at least one signal trace; and at least one second filter mounted within said transducer housing. - View Dependent Claims (40, 41, 42, 43, 44)
-
-
45. A method for making a mobile wireless communications device comprising:
-
providing at least one circuit board within a housing, and with radio frequency (RF) circuitry and a processor operative therewith and carried by the at least circuit board; mounting an audio transducer assembly to the at least one circuit board and comprising an audio transducer, a transducer housing for the audio transducer, and at least one electrical contact pad member on the transducer housing and coupled to the audio transducer; providing audio circuitry comprising at least one signal trace on the at least one circuit board and engaging the electrical contact pad member; coupling at least one first filter with the at least one signal trace; and mounting at least one second filter at the electrical contact pad member. - View Dependent Claims (46, 47, 48, 49)
-
-
50. A method for making a mobile wireless communications device comprising:
-
providing at least one circuit board within a housing, and with radio frequency (RF) circuitry and a processor operative therewith and carried by the at least circuit board; mounting an audio transducer assembly to the at least one circuit board and comprising an audio transducer, a transducer housing for the audio transducer, and at least one electrical contact pad member on the transducer housing and coupled to the audio transducer; providing audio circuitry comprising at least one signal trace on the at least one circuit board and engaging the electrical contact pad member; coupling at least one first filter with the at least one signal trace; and mounting at least one second filter within the transducer housing. - View Dependent Claims (51, 52, 53)
-
Specification