Electronic apparatus with noise shielding
First Claim
1. A body insertable device system, comprising:
- a body insertable device capable of being introduced into a subject, which acquires intra-subject information, and transmits radio signals containing the intra-subject information to an outside; and
a receiving apparatus adapted to receive the radio signals transmitted from the body insertable device,the receiving apparatus including;
a first circuit block adapted to perform analog processing and provided at least with a first ground terminal,a second circuit block adapted to perform digital processing and provided at least with a second ground terminal and adapted to generate a noise signal of a level higher than a level of a noise signal of the first circuit block on being driven,a conductive shield member which is adapted to receive a ground potential via the first ground terminal,a battery provided at least with a third ground terminal, anda conductive shield board arranged between the first circuit block and the second circuit block and electrically connected to the third ground terminal of the battery.
2 Assignments
0 Petitions
Accused Products
Abstract
A processing device (2) includes an analog circuit block (6), a digital circuit block (7), a casing (12) which houses elements including (6) and (7) and serves as a conductive shield member, and a connecting connector (13) which has functions, for example, of electrically connecting the casing (12) and a first ground terminal (6a) provided in the analog circuit block (6). Level of noise signals generated from the analog circuit block (6) is lower than the level of noise signals generated from the digital circuit block (7). Therefore, when the casing (12) is electrically connected to the first ground terminal (6a) provided in the analog circuit block (6), the casing (12) can maintain a stable potential thereby more effectively working as the conductive shield member. Thus, leakage of the noise signals generated at driving of internal electronic circuitry is effectively suppressed in an electronic apparatus such as a receiving apparatus.
17 Citations
4 Claims
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1. A body insertable device system, comprising:
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a body insertable device capable of being introduced into a subject, which acquires intra-subject information, and transmits radio signals containing the intra-subject information to an outside; and a receiving apparatus adapted to receive the radio signals transmitted from the body insertable device, the receiving apparatus including; a first circuit block adapted to perform analog processing and provided at least with a first ground terminal, a second circuit block adapted to perform digital processing and provided at least with a second ground terminal and adapted to generate a noise signal of a level higher than a level of a noise signal of the first circuit block on being driven, a conductive shield member which is adapted to receive a ground potential via the first ground terminal, a battery provided at least with a third ground terminal, and a conductive shield board arranged between the first circuit block and the second circuit block and electrically connected to the third ground terminal of the battery. - View Dependent Claims (2, 3, 4)
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Specification
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- Resources
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Current AssigneeOlympus Corporation
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Original AssigneeOlympus Corporation
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InventorsHonda, Takemitsu
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Primary Examiner(s)SMITH, PHILIP ROBERT
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Application NumberUS11/631,144Publication NumberTime in Patent Office3,150 DaysField of Search174/51, 174/521, 174/549, 343850-851, 361/796, 361/800, 455/296, 455/300, 455/310, 600/134, 600/302US Class Current600/103CPC Class CodesA61B 1/00016 using wireless meansA61B 1/041 Capsule endoscopes for imagingA61B 2562/182 Electrical shielding, e.g. ...A61B 5/07 EndoradiosondesH05K 9/0024 Shield cases mounted on a P...H05K 9/0039 Galvanic coupling of ground...
