IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0092402
(2002-03-05)
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발명자
/ 주소 |
|
대리인 / 주소 |
Polster, Lieder, Woodruff & Lucchesi L.C.
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인용정보 |
피인용 횟수 :
29 인용 특허 :
14 |
초록
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A banner stand for displaying banners or signs is disclosed. The banner stand is lightweight, portable, and easy to assembly while utilizing a minimum of parts. The banner stand includes a base tube with a flat, external portion against which two flat feet are secured. The feet may be rotated to ext
A banner stand for displaying banners or signs is disclosed. The banner stand is lightweight, portable, and easy to assembly while utilizing a minimum of parts. The banner stand includes a base tube with a flat, external portion against which two flat feet are secured. The feet may be rotated to extend laterally when the banner stand is erected and longitudinally when the banner stand is collapsed and stored. The base tube is substantially hollow providing a storage compartment for a pole assembly, the storage compartment being closed by end caps. The pole assembly is a multi-pole assembly that may collapse to the length of the longest pole, and each piece is connected by an elastic cord which also serves to hold the assembly together when the banner stand is erected. Between two of the poles of the pole assembly is a spring. In order to erect the stand, this spring is temporarily compressed and, upon returning to its original size, places the sign or banner under tension. When the stand is erected, the bottom end of the pole assembly fits within a bore in the top of the base tube, and the top end of the pole assembly attaches to a hanger. The hanger is attached to the top edge of the banner, while the bottom edge of the banner is attached to the base tube. When the banner and banner stand are collapsed for storage, the banner may be rolled around the base tube and feet and then be secured by a Velcro strip attached to the hanger. This permits a smooth, compact unit when in storage that may easily be placed within a carrying case or pouch.
대표청구항
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A banner stand for displaying banners or signs is disclosed. The banner stand is lightweight, portable, and easy to assembly while utilizing a minimum of parts. The banner stand includes a base tube with a flat, external portion against which two flat feet are secured. The feet may be rotated to ext
A banner stand for displaying banners or signs is disclosed. The banner stand is lightweight, portable, and easy to assembly while utilizing a minimum of parts. The banner stand includes a base tube with a flat, external portion against which two flat feet are secured. The feet may be rotated to extend laterally when the banner stand is erected and longitudinally when the banner stand is collapsed and stored. The base tube is substantially hollow providing a storage compartment for a pole assembly, the storage compartment being closed by end caps. The pole assembly is a multi-pole assembly that may collapse to the length of the longest pole, and each piece is connected by an elastic cord which also serves to hold the assembly together when the banner stand is erected. Between two of the poles of the pole assembly is a spring. In order to erect the stand, this spring is temporarily compressed and, upon returning to its original size, places the sign or banner under tension. When the stand is erected, the bottom end of the pole assembly fits within a bore in the top of the base tube, and the top end of the pole assembly attaches to a hanger. The hanger is attached to the top edge of the banner, while the bottom edge of the banner is attached to the base tube. When the banner and banner stand are collapsed for storage, the banner may be rolled around the base tube and feet and then be secured by a Velcro strip attached to the hanger. This permits a smooth, compact unit when in storage that may easily be placed within a carrying case or pouch. the field elements to generate the roots of the least affine multiple and evaluate such roots as true roots of the error locator polynomial; wherein the error locator polynomial root determination unit operates on the error locator polynomial in a form that includes coefficients which comprise linearized polynomials, the error locator polynomial root determination unit providing values of the linearized polynomials for each of the field elements; and wherein, during each root generation, the error locator polynomial root determination unit uses the Gray code sequence to select a linear combination of one or more of the values for each of the linearized polynomials so that such values are selected when the field elements for which such values are provided are selected. 2. The apparatus of claim 1, wherein the error locator polynomial root determination unit generates each of the roots by performing one Exclusive-OR operation for each selected linear combination of field elements. 3. The apparatus of claim 2, wherein the use of the Gray code causes only one of the field elements to be Exclusive-ORed with a previously generated root for each root generation. 4. The apparatus of claim 1, wherein the error locator polynomial root determination unit generates a result for each linearized polynomial for each root generation by performing an Exclusive-OR operation for each selected linear combination of one or more of the values. 5. The apparatus of claim 4, wherein, for each linearized polynomial, the use of the Gray code causes only one of the values to be Exclusive-ORed with a previously generated result for each root generation. 6. A method for processing an erroneous code word comprising: determining an error locator polynomial associated with the erroneous code word; finding field elements for generating roots of a least affine multiple of the error locator polynomial; using a Gray code sequence to select linear combinations of one or more of the field elements to generate the roots of the least affine multiple; providing the error locator polynomial in a form that includes coefficients which comprise linearized polynomials; providing values of the linearized polynomials for each of the field elements; and during each root generation, using the Gray code sequence to select a linear combination of one or more of the values for each of the linearized polynomials so that such values are selected when the field elements for which such values are provided are selected; and evaluating the roots as the true roots of the error locator polynomial. 7. The method of claim 6, wherein each of the roots is generated by performing one Exclusive-OR operation for each selected linear combination of field elements. 8. The method of claim 7, wherein the use of the Gray code causes only one of the field elements to be Exclusive-ORed with a previously generated root for each root generation. 9. The method of claim 6, wherein a result for each linearized polynomial for each root generation is generated by performing an Exclusive-OR operation for each selected linear combination of one or more of the values. 10. The method of claim 9, wherein, for each linearized polynomial, the use of the Gray code causes only one of the values to be Exclusive-ORed with a previously generated result for each root generation. 11. An apparatus for processing an erroneous code word comprising: an error locator polynomial generator to determine an error locator polynomial associated with the erroneous code word; circuitry to find field elements for generating roots of a least affine multiple of the error locator polynomial; an error locator polynomial root determination unit to use a binary code sequence to select linear combinations of one or more of the field elements to generate the roots of the least affine multiple and evaluate such roots as true roots of the error locator polynomial; wherein the error locator polynomial root determination unit
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