Card Reader Adapter Integrating Chip and Crystal to Reduce Volume

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Solution Overview

Problem

Traditional card readers are bulky due to the mechanical design of lead terminals and circuit boards, which increases manufacturing costs and reduces signal quality and efficiency.

Innovation Solution

An improved card reader design with a chip and oscillating crystal positioned between the lead terminals and the memory card slot, reducing the number of lead terminals and signal line length, and integrating the chip within the adapter to maximize space utilization.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If traditional lead terminals and circuit boards are used in card readers, then electrical connection and signal transmission are achieved, but the size and volume of the card reader increase

Engineering Contradiction:
Improvevolume of card readerVSAvoidcomplexity of lead terminal structure
Core Design Contradiction:
Volume of moving objectVSDevice complexity

Solution Approach 1:

The patent integrates the lead terminal structure with the circuit board by making the circuit board itself serve as the lead terminal support structure. The circuit board directly contacts the memory card contacts without requiring separate lead terminals, merging two previously separate components into one unified structure. This reduces the overall volume and simplifies the device complexity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent extracts and eliminates the unnecessary lead terminal components from the traditional card reader structure. By removing the separate lead terminals and their supporting mechanical structures, the design achieves a more compact form factor while maintaining electrical connectivity through the circuit board alone.

Inventive Principle:
Principle #2Taking out (Extraction)

2Ease of manufacture

If multiple lead terminals are used for signal transmission, then electrical connection is established, but manufacturing cost increases

Engineering Contradiction:
Improvemanufacturing costVSAvoidnumber of lead terminals
Core Design Contradiction:
Ease of manufactureVSQuantity of substance

Solution Approach 1:

The patent combines the functions of multiple lead terminals into a single circuit board structure. The circuit board provides both mechanical support and electrical connectivity that previously required separate lead terminal components. This reduction in component quantity directly lowers manufacturing costs by reducing assembly steps, material usage, and quality control requirements.

Inventive Principle:
Principle #5Merging (Combining)

3Reliability

If lead terminals are extended to connect chip device and memory card slot, then electrical connection is achieved, but signal quality deteriorates

Engineering Contradiction:
Improvesignal transmission qualityVSAvoidlength of signal line
Core Design Contradiction:
ReliabilityVSLength of stationary object

Solution Approach 1:

The patent extracts and eliminates the excessive signal line length by removing the mechanical lead terminal extensions. The circuit board provides direct electrical pathways from the memory card slot to the chip device without requiring long external connections. This shortening of signal paths reduces signal degradation and improves transmission quality.

Inventive Principle:
Principle #2Taking out (Extraction)

4Area of stationary object

If traditional adapter structure with separate components is used, then assembly is straightforward, but space utilization is inefficient

Engineering Contradiction:
Improvespace utilization of adapterVSAvoidnumber of separate components
Core Design Contradiction:
Area of stationary objectVSDevice complexity

Solution Approach 1:

The patent merges the lead terminal support structure, circuit board, and electrical connection pathways into a single integrated circuit board assembly. This eliminates the need for separate mechanical components and lead terminal structures, achieving efficient space utilization within the adapter while maintaining all necessary electrical connections.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS7325745B2Card reader assembly
Publication Date: 2008.02.05 ALCOR MICRO CORP
  • US7325745B2 patent drawing
  • US7325745B2 patent drawing
  • US7325745B2 patent drawing

AI summary

The present invention discloses an improved card reader assembly, and more particularly an improved adapter assembly of a card reader that stacks the components in the space as to achieve the effect of saving the area and volume of the adapter of the card reader. The improved card reader assembly is an improved adapter assembly that includes a card base, and the card base includes a circuit board and at least one slot. The circuit board has a plurality of lead terminals electrically coupled to a memory card that is inserted into the slot; a top cover; and a chip and an oscillating crystal are installed in the adapter body at a position between the top cover and the card base. The chip is situated between the lead terminal of the card base and the slot, and the chip and the oscillating crystal are electrically connected to the circuit board, and a terminal set is installed onto the adapter body and electrically connected to the circuit board and the chip. Further, the chip is installed inside the structure and electrically connected to the circuit board. The present invention can reduce the area and volume of a card reader as well as the number of pins on the adapter to facilitate maintenance and repairs and improve the economic benefits of manufacturing card readers and the stability of signal transmissions.