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Class Information
Number: 434/358
Name: Education and demonstration > Question or problem eliciting response > Grading of response form > Light detector sensing response
Description: Subject matter wherein the examinee"s response is detected by light sensitive means (e.g., a photocell, etc.)
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7555145 |
Multi-level optical mark reading that uses an unambiguous symbology of marks to fill into response bubbles |
Jun. 30, 2009 |
| 7516180 |
System and method for providing instructor services using a plurality of client workstations connected to a central control station |
Apr. 7, 2009 |
| 7298901 |
Scannable form and system |
Nov. 20, 2007 |
| 6879805 |
Test form having a removable opaque layer, and method and apparatus for printing on the form |
Apr. 12, 2005 |
| 6729881 |
Electronic educational toy appliance and a portable memory device therefor |
May. 4, 2004 |
| 6684052 |
Scanning system for imaging and storing the images of test answer sheets having open-ended questions |
Jan. 27, 2004 |
| 6366760 |
Method for imaging test answer sheets having open-ended questions |
Apr. 2, 2002 |
| 6210171 |
Method and apparatus for multiple choice testing system with immediate feedback for correctness of response |
Apr. 3, 2001 |
| 6178308 |
Paper based intermedium for providing interactive educational services |
Jan. 23, 2001 |
| 6173154 |
System and method for imaging test answer sheets having open-ended questions |
Jan. 9, 2001 |
| 6011949 |
Study support system |
Jan. 4, 2000 |
| 5711673 |
Method for interpreting a plurality of response marks on a scannable surface |
Jan. 27, 1998 |
| 5597311 |
System for making examination papers and having an automatic marking function |
Jan. 28, 1997 |
| 5453600 |
Machine readable code combining preprinted indicia with hand-mark data |
Sep. 26, 1995 |
| 5452379 |
Image capture and storage techniques in association with optical mark reading |
Sep. 19, 1995 |
| 5420407 |
Adjustable read level threshold for optical mark scanning |
May. 30, 1995 |
| 5399845 |
Optical data detecting apparatus and method |
Mar. 21, 1995 |
| 5331137 |
Machine readable code combining preprinted indicia with hand-mark data |
Jul. 19, 1994 |
| 5154616 |
Answer sheet covering device |
Oct. 13, 1992 |
| 5085587 |
Scannable form and system |
Feb. 4, 1992 |
| 5084819 |
Data collection, analysis, and response system and method |
Jan. 28, 1992 |
| 5046005 |
Test scoring machine |
Sep. 3, 1991 |
| 5011413 |
Machine-interpretable figural response testing |
Apr. 30, 1991 |
| 4978305 |
Free response test grading method |
Dec. 18, 1990 |
| 4547161 |
Apparatus and method for Cloze-Elide testing |
Oct. 15, 1985 |
| 4303399 |
Test scoring card and method of employing same |
Dec. 1, 1981 |
| 4259667 |
Information interchange between an intelligent operator, indicia bearing documents, and responsive apparatus |
Mar. 31, 1981 |
| 4243876 |
Background light intensity compensation circuit for a line scan camera system |
Jan. 6, 1981 |
| 4217487 |
Self-calibrating apparatus for photoelectrically scanning answer documents |
Aug. 12, 1980 |
| 4162408 |
Optical mark sense detector |
Jul. 24, 1979 |
| 4002888 |
Test form for use with a test scoring apparatus |
Jan. 11, 1977 |
| 3995381 |
Low visibility answer sheet and method of testing |
Dec. 7, 1976 |
| 3983364 |
Apparatus utilizing analog-to-digital conversion in the photoelectric reading of documents |
Sep. 28, 1976 |
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