Integrated circuit, diagnostic system and diagnostic method
First Claim
1. An integrated circuit that performs radio communication with an external apparatus by transmission or reception of a carrier, the integrated circuit comprising:
- a processing circuit;
a diagnostic circuit configured to perform a diagnosis of the processing circuit according to a plurality of diagnostic items;
a detector configured to detect a radio signal level; and
a charging circuit configured to store charge for causing the diagnostic circuit to operate, during a period that the detector detects that the radio signal level is a first logic level,wherein the diagnostic circuit is configured to perform the diagnosis on a first subset of the plurality of diagnostic items by using the charge stored in the charging circuit during a first period that the detector detects that the radio signal level is a second logic level which differs from the first logic level.
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Accused Products
Abstract
An integrated circuit is one that performs radio communication with an external apparatus and includes a processing circuit, a diagnostic circuit configured to perform a diagnosis of the processing circuit according to a plurality of diagnostic items and a charging circuit configured to store charge for causing the diagnostic circuit to operate, during a period of performing radio communication, in which the diagnostic circuit is configured to perform the diagnosis on a first subset of the plurality of diagnostic items by using the charge stored in the charging circuit during a first period of not performing radio communication.
10 Citations
19 Claims
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1. An integrated circuit that performs radio communication with an external apparatus by transmission or reception of a carrier, the integrated circuit comprising:
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a processing circuit; a diagnostic circuit configured to perform a diagnosis of the processing circuit according to a plurality of diagnostic items; a detector configured to detect a radio signal level; and a charging circuit configured to store charge for causing the diagnostic circuit to operate, during a period that the detector detects that the radio signal level is a first logic level, wherein the diagnostic circuit is configured to perform the diagnosis on a first subset of the plurality of diagnostic items by using the charge stored in the charging circuit during a first period that the detector detects that the radio signal level is a second logic level which differs from the first logic level. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A diagnostic system comprising:
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an external apparatus; and an integrated circuit configured to perform radio communication with the external apparatus by transmission or reception of a carrier, the integrated circuit comprising; a processing circuit; a diagnostic circuit configured to perform a diagnosis of the processing circuit according to a plurality of diagnostic items; a detector configured to detect a radio signal level; and a charging circuit configured to store charge for causing the diagnostic circuit to operate, during a period that the detector detects that the radio signal level is a first logic level, wherein the diagnostic circuit is configured to perform the diagnosis on a first subset of the plurality of diagnostic items by using the charge stored in the charging circuit during a first period that the detector detects that the radio signal level is a second logic level which differs from the first logic level. - View Dependent Claims (14, 15, 16)
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17. A diagnostic method comprising:
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detecting a radio signal level in a detector; storing charge in a charging circuit for a period when the detector detects that the radio signal level is a first logic level performing a diagnosis of a processing circuit according to a subset of a plurality of diagnostic items by using the charge stored in the charging circuit during a first period of detecting a radio signal level is a second logic level which differs from the first logic level. - View Dependent Claims (18, 19)
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Specification