DE3887855T2 - Steuereinrichtung für einen Nur-Lese-Speicher und damit ausgerüstete elektronische Kasse. - Google Patents

Steuereinrichtung für einen Nur-Lese-Speicher und damit ausgerüstete elektronische Kasse.

Info

Publication number
DE3887855T2
DE3887855T2 DE19883887855 DE3887855T DE3887855T2 DE 3887855 T2 DE3887855 T2 DE 3887855T2 DE 19883887855 DE19883887855 DE 19883887855 DE 3887855 T DE3887855 T DE 3887855T DE 3887855 T2 DE3887855 T2 DE 3887855T2
Authority
DE
Germany
Prior art keywords
read
memory
control device
cash register
electronic cash
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.)
Expired - Lifetime
Application number
DE19883887855
Other languages
English (en)
Other versions
DE3887855D1 (de
Inventor
Hideo Sakuma
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sharp Corp
Original Assignee
Sharp Corp
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
Application filed by Sharp Corp filed Critical Sharp Corp
Publication of DE3887855D1 publication Critical patent/DE3887855D1/de
Application granted granted Critical
Publication of DE3887855T2 publication Critical patent/DE3887855T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11CSTATIC STORES
    • G11C16/00Erasable programmable read-only memories
    • G11C16/02Erasable programmable read-only memories electrically programmable
    • G11C16/06Auxiliary circuits, e.g. for writing into memory
    • G11C16/10Programming or data input circuits
    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07GREGISTERING THE RECEIPT OF CASH, VALUABLES, OR TOKENS
    • G07G1/00Cash registers
    • G07G1/12Cash registers electronically operated
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11CSTATIC STORES
    • G11C16/00Erasable programmable read-only memories
    • G11C16/02Erasable programmable read-only memories electrically programmable
    • G11C16/06Auxiliary circuits, e.g. for writing into memory
    • G11C16/22Safety or protection circuits preventing unauthorised or accidental access to memory cells
    • G11C16/225Preventing erasure, programming or reading when power supply voltages are outside the required ranges
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11CSTATIC STORES
    • G11C16/00Erasable programmable read-only memories
    • G11C16/02Erasable programmable read-only memories electrically programmable
    • G11C16/06Auxiliary circuits, e.g. for writing into memory
    • G11C16/32Timing circuits
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11CSTATIC STORES
    • G11C17/00Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards
    • G11C17/14Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards in which contents are determined by selectively establishing, breaking or modifying connecting links by permanently altering the state of coupling elements, e.g. PROM
    • G11C17/18Auxiliary circuits, e.g. for writing into memory
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11CSTATIC STORES
    • G11C5/00Details of stores covered by group G11C11/00
    • G11C5/14Power supply arrangements, e.g. power down, chip selection or deselection, layout of wirings or power grids, or multiple supply levels
    • G11C5/143Detection of memory cassette insertion or removal; Continuity checks of supply or ground lines; Detection of supply variations, interruptions or levels ; Switching between alternative supplies

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Security & Cryptography (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Read Only Memory (AREA)
  • Static Random-Access Memory (AREA)
DE19883887855 1987-12-21 1988-12-20 Steuereinrichtung für einen Nur-Lese-Speicher und damit ausgerüstete elektronische Kasse. Expired - Lifetime DE3887855T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP32486087A JPH0756757B2 (ja) 1987-12-21 1987-12-21 メモリの電源投入後の制御装置

Publications (2)

Publication Number Publication Date
DE3887855D1 DE3887855D1 (de) 1994-03-24
DE3887855T2 true DE3887855T2 (de) 1994-09-01

Family

ID=18170457

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19883887855 Expired - Lifetime DE3887855T2 (de) 1987-12-21 1988-12-20 Steuereinrichtung für einen Nur-Lese-Speicher und damit ausgerüstete elektronische Kasse.

Country Status (4)

Country Link
EP (1) EP0321933B1 (de)
JP (1) JPH0756757B2 (de)
DE (1) DE3887855T2 (de)
TR (1) TR23969A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020129479B4 (de) 2020-11-09 2023-11-09 Polymath.Vision UG (haftungsbeschränkt) Linearantrieb und Verfahren zur Linearverschiebung eines Objektes

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5840643A (ja) * 1981-09-03 1983-03-09 Toshiba Corp 1チツプマイクロコンピユ−タの発振制御方式
US4534018A (en) * 1983-04-29 1985-08-06 Pitney Bowes Inc. Non-volatile memory protection circuit with microprocessor interaction
US4665328A (en) * 1984-07-27 1987-05-12 National Semiconductor Corporation Multiple clock power down method and structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020129479B4 (de) 2020-11-09 2023-11-09 Polymath.Vision UG (haftungsbeschränkt) Linearantrieb und Verfahren zur Linearverschiebung eines Objektes

Also Published As

Publication number Publication date
EP0321933B1 (de) 1994-02-16
JPH0756757B2 (ja) 1995-06-14
DE3887855D1 (de) 1994-03-24
TR23969A (tr) 1991-01-11
EP0321933A2 (de) 1989-06-28
JPH01165094A (ja) 1989-06-29
EP0321933A3 (en) 1990-08-08

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

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