Electricity: electrical systems and devices – Housing or mounting assemblies with diverse electrical... – For electronic systems and devices
Reexamination Certificate
2000-01-23
2001-06-12
Picard, Leo P. (Department: 2835)
Electricity: electrical systems and devices
Housing or mounting assemblies with diverse electrical...
For electronic systems and devices
C361S724000, C361S726000, C439S928000
Reexamination Certificate
active
06246578
ABSTRACT:
BACKGROUND OF THE INVENTION
1) Field of the Invention
The invention herein relates to a computer peripheral, specifically a computer-dedicated auxiliary data access device.
2) Description of the Prior Art
In present day computer processing, in addition to the memory components internally installed on the mainboard and the connected hard disk drives that handle repeated data reading and writing operations, other computer peripherals also installed include auxiliary data access devices such as floppy diskette drives and optical disk drives. Referring to
FIG. 1
, the most widely utilized such device is the floppy diskette drive
1
into which is inserted a magnetic media in the form of a circular plastic platter
2
encased in a protective plastic jacket
3
(having a thickness of 0.2 to 0.3 cm and width of 9 to 13.3 cm) and analogous with magnetic tape, since principles of magnetism are utilized to store data via a read-write head
1
a
inside the floppy diskette drive
1
, there is no substantial difference between the said type of read-write head
1
a
and a tape recorder play/record head; since the storage capacity of a typical magnetic diskette is limited, the storage of larger quantities of data is accomplished by utilizing a number of magnetic diskettes, with excessively large batches of data such as graphics files being impossible to archive; even if replaced by a double-sided high-density diskette drive and the compatible double-sided high-density diskettes to obtain a memory capacity of 1.2 MB, the storage of enormous graphics files cannot be achieved in a single access: as a result, the utilization of the said device is extremely impractical. Furthermore, as more magnetic diskettes are purchased for use, the total number of archived material increases continually, with their rather sizable physical dimensions (measuring 0.2 to 0.3 cm thick and 9 to 13.3 cm in width) not only creating considerably troublesome storage management problems, but also resulting in portability inconveniences.
Optical disk drives
4
are considered applications of laser technology, but the reading and writing operations in the optical disk drive
4
do not require a read-write head to accomplish because data is read and written by the two different laser beams, with the storage layer on the optical disk
5
capable of various material changes in response to laser light exposure; since laser beams can be focused to occupy relatively minute surface areas, the capacity of an optical disk
5
is often quite immense, with a 12-inch optical disk
5
capable of storing four gigabytes of data; therefore, a 12-inch optical disk
5
can replace 100 40 MB hard disk drives; generally speaking, while the data storage density available on the optical disk
5
is approximately 40 times higher than that of a conventional magnetic diskette, such storage approaches have not become widespread due to the exorbitant prices of read/write-capable optical disk drives
4
; as a result, most optical disk drives
4
today only are read-only units that have no built-in write capability, with data write-in requiring a separate write-capable optical disk drive (not shown in the drawings) utilizing laser fusion recording technology; however, the high archiving error rate of such a complex storage technology makes this approach rather impractical.
In view of the said shortcomings, the inventor of the invention herein, based on many years of experience in the production and marketing of this category of products, conducted extensive research and testing, which finally culminated in the development of the practical invention herein.
SUMMARY OF THE INVENTION
The primary objective of the invention herein is to provide a computer-dedicated auxiliary data access device capable of achieving rapid auxiliary memory performance, high capacity access operations, a significantly prolonged service life and, furthermore, excellent storage and portability.
Therefore, the computer-dedicated auxiliary data access device of the invention herein is comprised of a device case having a minimum of one horizontal slot in the front side and, furthermore, a housing cavity perpendicularly formed inward beyond the said horizontal slot, a universal serial bus (USB) interface socket installed at the end section of the said housing cavity, an IC circuit board disposed in parallel alignment with the said horizontal slot, a card terminal connector respectively situated at the end face of the said IC circuit board, and a number of perpendicularly supportive spring contacts of said card terminal connector that are connected via a flat cable routed to the interface socket; the said horizontal slot provides for the sideways insertion of an ultra thin flat memory card; the said memory card internally consists of high-speed flash memory chips and also includes a main controller IC and a memory IC which have a read/write specification of 10,000 times to enable the rapid reading and writing of data; an exposed read access area is formed in the top of the said memory card that is in parallel alignment with the said card terminal connector, the read access area consisting of an elastically loaded plurality of contacts intervallicly disposed that enable perpendicular mutual engagement; a transmission cable is installed to said interface socket and the other end installed to the USB port of a computer; as such, the present invention achieves computer-dedicated high speed and high capacity auxiliary memory access operations, while providing for convenient portability and maintenance.
To enable the examination committee to further understand the objectives, innovations, and advantages of the invention herein, the brief description of the drawings below is followed by the detailed description of the preferred embodiments.
REFERENCES:
patent: 5408386 (1995-04-01), Ringer et al.
patent: 6125034 (2000-09-01), Bovio et al.
patent: 6137688 (2000-10-01), Borkar et al.
Chen Kevin Alexander
Wei Tzu Hsiang
Duong Hung Van
Picard Leo P.
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