Wireless system, semiconductor device, and communication device

• US 20080186181A1
• Filed: 01/30/2008
• Published: 08/07/2008
• Est. Priority Date: 02/02/2007
• Status: Active Grant

• Current Assignee: Semiconductor Energy Laboratory Co., Ltd.
• Original Assignee: Semiconductor Energy Laboratory Co., Ltd.
• Inventors: Kurokawa, Yoshiyuki
• Granted Patent: US 8,009,050 B2
• Time in Patent Office: Days
• US Class Current: 340/572.1
• CPC Class Codes: G06K 19/0723 the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs

Abstract

A highly reliable and inexpensive wireless system, which includes a communication device and a semiconductor device having a plurality of functional circuits with the same function, is provided. The semiconductor device transmits the processing results of the functional circuits to the communication device by a time-division system.

Claims

1. A wireless system comprising:

a semiconductor device comprising a plurality of functional circuits and configured to transmit processing signals of the plurality of functional circuits; and

a communication device comprising an arithmetic processing circuit and configured to receive the processing signals,

wherein the processing signals are transmitted at intervals of a unit time, and

wherein the arithmetic processing circuit in the communication device is configured to perform majority operation to the processing signals.

2. The wireless system according to claim 1, wherein the communication device comprises a computing unit.

3. The wireless system according to claim 1, wherein the arithmetic processing circuit is connected to a server provided outside the communication device.

4. A wireless system comprising:

a plurality of semiconductor devices comprising functional circuits, wherein each of the plurality of semiconductor devices comprises one of the functional circuits, and wherein the plurality of semiconductor devices are configured to transmit processing signals of the functional circuits; and

a communication device comprising an arithmetic processing circuit and configured to receive the processing signals,

wherein the processing signals of the functional circuits of the plurality of semiconductor devices are transmitted at intervals of a unit time, and

wherein the arithmetic processing circuit in the communication device is configured to perform majority operation to the processing signals.

5. The wireless system according to claim 4, wherein the communication device comprises a computing unit.

6. The wireless system according to claim 4, wherein the arithmetic processing circuit is connected to a server provided outside the communication device.

7. A semiconductor device comprising:

a plurality of functional circuits;

a controller configured to sequentially read data stored in the plurality of functional circuits at intervals of a unit time; and

a transmission/reception circuit configured to transmit the data as a processing signal to a communication device and to receive processed data that is output based on majority processed data obtained by majority operation in an arithmetic processing circuit included in the communication device.

8. The semiconductor device according to claim 7, wherein the communication device comprises a computing unit configured to output the processed data based on the majority processed data.

9. The semiconductor device according to claim 7, wherein the arithmetic processing circuit is connected to a server that is provided outside the communication device and configured to output the processed data based on the majority processed data.

10. A communication device comprising:

a transmission/reception circuit configured to receive processing signals transmitted from a semiconductor device comprising a plurality of functional circuits at intervals of a unit time and to transmit processed data to the semiconductor device; and

an arithmetic processing circuit configured to perform majority operation to the processing signals received by the transmission/reception circuit and to output majority processed data.

11. The communication device according to claim 10, further comprising a computing unit configured to output the processed data based on the majority processed data.

12. The communication device according to claim 10, wherein the arithmetic processing circuit is connected to a server that is provided outside the communication device and configured to output the processed data based on the majority processed data.

13. A communication device comprising:

a transmission/reception circuit configured to receive processing signals transmitted from a plurality of semiconductor devices, each of the plurality of semiconductor devices comprising a functional circuit, at intervals of a unit time and to transmit processed data to the semiconductor devices; and

an arithmetic processing circuit configured to perform majority operation to the processing signals received by the transmission/reception circuit and to output majority processed data.

14. The communication device according to claim 13, further comprising a computing unit configured to output the processed data based on the majority processed data.

15. The communication device according to claim 13, wherein the arithmetic processing circuit is connected to a server that is provided outside the communication device and configured to output the processed data based on the majority processed data.