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A dual-interface card that supports simultaneous data processing

A dual-interface card and simultaneous processing technology, which is applied to record carriers, instruments, and calculations used by machines, can solve problems such as loss and data anomalies, and achieve the effects of avoiding anomalies and loss, improving reliability, and expanding the scope of application

Active Publication Date: 2018-10-30
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] The purpose of the present invention is to overcome the defect that data abnormality or loss is easily caused when dual-interface cards are operated at the same time in the prior art. According to one aspect of the present invention, a dual-interface card that supports simultaneous data processing is proposed

Method used

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  • A dual-interface card that supports simultaneous data processing
  • A dual-interface card that supports simultaneous data processing
  • A dual-interface card that supports simultaneous data processing

Examples

Experimental program
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Effect test

Embodiment 1

[0055] see Figure 6 As shown, in the first embodiment, the first connection circuit 30 may be a wire, and the second connection circuit 40 is a NOT gate, and the dual-interface card further includes: a reset unit 80 ; the reset unit 80 is used to reset the processor 60 . At this time, the first latch buffer BUF1 is used for data buffering at the rising edge of the clock, and the second latch buffer BUF2 is used for data buffering at the falling edge of the clock.

[0056] For the dual-interface card provided in Embodiment 1, when two interface interfaces operate data at the same time, the timing diagram for processing data can be found in Figure 7 As shown, the non-contact interface interface operates data Data1, and the contact interface interface operates data Data2, and both of them operate data at the time T0. At this time, Data1 is latched into BUF1 at the first rising edge of the clock. The first falling edge latches Data2 into BUF2. After several clocks CLK, the pro...

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Abstract

The invention discloses a double-interface card capable of simultaneously processing data. The double interface card comprises a contact interface port, a non-contact interface port, a first latching buffer area, a second latching buffer area, a first AND gate, a second AND gate, a first connection circuit, a second connection circuit, a time clock circuit, a processor and a storage unit; a read-write control signal of the contact interface port is connected to a first input terminal of the first AND gate; the output terminal of the first AND gate is connected to the control terminal of the first latching buffer area; the read-write control signal of the non-contact interface port is connected to the fist input terminal of the second AND gate; the output terminal of the second AND gate is connected to the control terminal of the second latching buffer area; and the first connection circuit and the second connection circuit output opposite levels. The double interface card can control two latching buffer areas to perform time sharing buffering on data so as to achieve simultaneous reception and asynchronous processing, and guarantees that the data of two interfaces is not lost.

Description

technical field [0001] The invention relates to the field of chip technology, in particular to a dual-interface card supporting simultaneous data processing. Background technique [0002] Dual-interface card is a kind of smart card. It is a dual-interface IC card that combines contactless IC card interface and contact IC card interface. It has both contact card (hereinafter referred to as 7816 interface) and contactless card ( Hereinafter referred to as the RF interface) advantages, that is, it has the durability and convenience of a non-contact IC card, and has the security of a contact IC card. At present, dual-interface cards are widely used in the purchase of electricity / water / gas and local recharge of smart meters such as smart gas meters, smart water meters, and smart electricity meters, which brings great convenience to users and competent service departments. [0003] There are three types of dual-interface cards currently on the market: [0004] 1. The contact sys...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K19/077
Inventor 王东山王立城李明维
Owner STATE GRID CORP OF CHINA
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