JPH0460890A - Non-contact memory card - Google Patents

Non-contact memory card

Info

Publication number
JPH0460890A
JPH0460890A JP17233790A JP17233790A JPH0460890A JP H0460890 A JPH0460890 A JP H0460890A JP 17233790 A JP17233790 A JP 17233790A JP 17233790 A JP17233790 A JP 17233790A JP H0460890 A JPH0460890 A JP H0460890A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
power
circuit
power supply
internal electronic
electronic circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP17233790A
Inventor
Kazuto Ono
Original Assignee
Citizen Watch Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date

Links

Abstract

PURPOSE: To speed up the rise time of power supply by providing a power supply connection circuit between a power receiving part and an internal electronic circuit, and isolating the internal electronic circuit until voltage rises up to the voltage capable of operating the internal electronic circuit after the start of the supply of power.
CONSTITUTION: A section from a power supply circuit 4 to a rectification circuit is considered as a power supply part 1, and a rectified power signal is supplied as the operating power of the internal electronic circuit 2 through the power supply connection circuit 3. The power supply connection circuit 3 consists of a voltage detection circuit and a power transistor, etc., and when an input voltage level is low, it turns off the power transistor so as not to output an input signal. Namely, until the voltage of the power signal reaches the level to make the internal electronic circuit operatable after the start of the supply of the power, it prevents the power from the power supply part 1 from being supplied to the internal electronic circuit 2. Thus, by not consuming wasteful power, the rise time of the power supply can be speeded up.
COPYRIGHT: (C)1992,JPO&Japio
JP17233790A 1990-06-29 1990-06-29 Non-contact memory card Pending JPH0460890A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17233790A JPH0460890A (en) 1990-06-29 1990-06-29 Non-contact memory card

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17233790A JPH0460890A (en) 1990-06-29 1990-06-29 Non-contact memory card

Publications (1)

Publication Number Publication Date
JPH0460890A true true JPH0460890A (en) 1992-02-26

Family

ID=15940035

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17233790A Pending JPH0460890A (en) 1990-06-29 1990-06-29 Non-contact memory card

Country Status (1)

Country Link
JP (1) JPH0460890A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5418358A (en) * 1992-08-20 1995-05-23 Temic Telefunken Microelectronic Gmbh Chip card with field strength detector having a switch and load to limit damping to the measurement cycle
JP2009100276A (en) * 2007-10-17 2009-05-07 Aruze Corp Wireless communication tag and wireless communication system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5418358A (en) * 1992-08-20 1995-05-23 Temic Telefunken Microelectronic Gmbh Chip card with field strength detector having a switch and load to limit damping to the measurement cycle
JP2009100276A (en) * 2007-10-17 2009-05-07 Aruze Corp Wireless communication tag and wireless communication system

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