U.S. patent number 3,896,295 [Application Number 05/494,233] was granted by the patent office on 1975-07-22 for data processing form.
This patent grant is currently assigned to Minnesota Mining and Manufacturing Company. Invention is credited to Harold J. LaPlante.
United States Patent |
3,896,295 |
LaPlante |
July 22, 1975 |
Data processing form
Abstract
A data processing form of the type having rows and columns of
indicia receiving positions characterized by having two separate
timing mark columns so as to make the form useful with two
different types of photoelectric sensing apparatus employing
different timing schemes for sensing indicia receiving positions. A
first timing mark column containing a plurality of first timing
marks is aligned with a column of indicia receiving positions, with
one of said first timing marks preceding each row of indicia
receiving positions in sequence. A second timing mark column is
spaced from and parallel to the columns of indicia receiving
positions and contains a plurality of second timing marks, each of
which second timing marks is approximately aligned with a
corresponding row of indicia receiving positions and is positioned
with respect to the first timing mark preceding the corresponding
aligned row of indicia receiving positions to be sensed after
completion of the sensing of said first timing mark.
Inventors: |
LaPlante; Harold J.
(Bloomington, MN) |
Assignee: |
Minnesota Mining and Manufacturing
Company (Saint Paul, MN)
|
Family
ID: |
23963619 |
Appl.
No.: |
05/494,233 |
Filed: |
August 2, 1974 |
Current U.S.
Class: |
235/487;
434/358 |
Current CPC
Class: |
G06K
19/04 (20130101) |
Current International
Class: |
G06K
19/04 (20060101); G06K 019/06 (); G09B
007/00 () |
Field of
Search: |
;235/61.6E,61.12N
;35/48B ;250/555,566 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Cook; Daryl W.
Attorney, Agent or Firm: Alexander, Sell, Steldt &
DeLaHunt
Claims
What is claimed is:
1. A data processing form for use with photoelectric sensing
apparatus of the type for sensing the presence of indicia in
indicia receiving locations on the form, said form comprising
a. a generally rectangular shaped sheet of paper or like material
having longitudinal and transverse axes, and at least one generally
straight edge parallel with one of said axes, said straight edge
providing a reference edge for guiding the movement of the paper
through said sensing apparatus;
b. a series of indicia receiving locations indicated on said sheet
of paper, with each location having a given number of positions in
which an indicia can be placed, said given number of positions of
each location being spaced to form rows generally perpendicular to
said straight edge of the sheet and said series of locations being
spaced with each position of said given number of positions therein
being aligned with similar positions of adjacent locations to form
columns generally parallel with said straight edge of the
sheet;
c. a first timing mark column containing a plurality of first
timing marks aligned with one of the columns of indicia receiving
positions, with one of the first timing marks preceding each
indicia receiving location in sequence;
and
d. a second timing mark column containing a plurality of second
timing marks, spaced from the column of indicia receiving positions
and aligned parallel with said straight edge of the sheet, with
each second timing mark being approximately aligned with a
corresponding row of indicia receiving positions perpendicular to
said straight edge of the sheet and being positioned with respect
to the first timing mark preceding said corresponding aligned row
of indicia receiving positions so as to be sensed after completion
of the sensing of said first timing mark.
2. A data processing form according to claim 1, wherein the second
timing mark column further comprises a start of sensing mark and a
termination of sensing mark, said start of sensing mark having a
first length, said plurality of second timing marks having a second
length different from said first length, and said termination of
sensing mark having a third length different from both said first
and second lengths.
3. A data processing form according to claim 2, further comprising
blank spaces indicated at a position following the series of
indicia receiving locations in sequence for receiving information
related to the use of the form, and characterized by the first
timing mark column further containing a mark having a length
greater than the length of any of the other marks and extending
beyond the blank spaces.
4. A data processing form according to claim 1, further comprising
blank spaces indicated at a position following the series of
indicia receiving locations in sequence for receiving information
related to the use of the form, and characterized by the first
timing mark column further containing a mark having a length
greater than the length of any of the other marks and extending
beyond the blank spaces.
Description
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention generally relates to data processing forms
for use with photoelectric sensing apparatus of the type for
sensing the presence or absence of indicia in indicia receiving
positions on the form.
2. Description of the Prior Art
Typical of this class of data processing forms are those described
in U.S. Pat. No. 3,518,440 to Hanson et al. and in U.S. Pat. No.
3,800,439 to Sokolski et al. Each of the embodiments of the data
processing forms described in these two patents is useful with only
the photoelectric sensing apparatus described in the patent in
which the respective embodiments of the forms are described.
Each of these embodiments of data processing forms have the
following features in common: (a) a generally rectangular shaped
sheet of paper or like material having longitudinal and transverse
axes, and at least one generally straight edge parallel with one of
said axes, said straight edge providing a reference edge for
guiding the movement of the paper through said sensing apparatus;
(b) a series of indicia receiving locations indicated on said sheet
of paper, with each location having a given number of positions in
which an indicia can be placed, said given number of positions of
each location being spaced to form rows generally perpendicular to
said straight edge of the sheet and said series of locations being
spaced with each position of said given number of positions therein
being aligned with similar positions of adjacent locations to form
columns generally parallel with said straight edge of the sheet;
and (c) a timing mark column containing a plurality of timing
marks, with one of the timing marks being positioned with respect
to each row of indicia receiving positions to time the sensing of
the indicia receiving positions in said row.
These prior art data processing forms differ with respect to the
positioning of their respective timing mark columns. The Hanson et
al. forms have a timing mark column containing a plurality of
timing marks aligned with one of the columns of indicia receiving
positions, with one of the timing marks preceding each indicia
receiving location. The Sokolski et al. forms have a timing mark
column containing a plurality of timing marks spaced from the
columns of indicia receiving positions and aligned parallel with
said straight edge of the sheet, with each timing mark being
aligned with a corresponding row of indicia receiving positions
perpendicular to said straight edge of the sheet.
The timing mark column of the Sokolski et al. data processing form
further contains a start of sensing mark and a termination of
sensing mark. The "start of sensing" mark is of a first length. The
plurality of timing marks aligned with the corresponding rows of
indicia receiving positions are of a second length different from
the first length, and the "termination of sensing" mark is of a
third length different from both the first and second lengths.
The respective timing mark columns of the Hanson et al. and
Sokolski et al. data processing forms have the different features
described hereinabove in order to make the respective forms useful
with the respective photoelectric sensing apparatus having their
own unique timing schemes for sensing indicia receiving positions.
Such schemes are described in their respective patents referred to
hereinabove.
In accordance with the present state of the art it is seen that a
user of these two different photoelectric sensing apparatus has the
problem of having to procure different data processing forms for
use with each apparatus.
SUMMARY OF THE INVENTION
In accordance with the present invention there is provided a data
processing form which is compatible for use with both of these two
different photoelectric sensing apparatus employing different
timing schemes.
The data processing form of the present invention includes a first
timing mark column containing a plurality of first timing marks
aligned with one of the columns of indicia receiving positions,
with one of the first timing marks preceding each indicia receiving
location in sequence; and a second timing mark column containing a
plurality of second timing marks spaced from the columns of indicia
receiving positions and aligned parallel with said straight edge of
the sheet, with each second timing mark being approximately aligned
with a corresponding row of indicia receiving positions
perpendicular to said straight edge of the sheet and being
positioned with respect to the first timing mark preceding said
corresponding aligned row of indicia receiving positions so as to
be sensed after the completion of sensing of said first timing
mark.
It is pointed out that unless each second timing mark is positioned
with respect to the first timing mark preceding the corresponding
aligned row of indicia receiving positions so as to be sensed after
the sensing of said first timing mark, then such a first timing
mark could be erroneously sensed as an indicia in a following
indicia receiving position in the column thereof aligned with the
first timing mark column whenever the data processing form of the
present invention were used with a photoelectric sensing apparatus
having a timing scheme such that as described in the Sokolski et
al. patent.
In a preferred embodiment of the data processing form of the
present invention, blank spaces are indicated at a position
following the series of indicia receiving locations in sequence.
These blank spaces are indicated for receiving information related
to the use of the form, such as "Name," "Subject," and "Date." Such
information is usually necessary when the data processing form is
used as a student answer sheet, such as described in the Sokolski
et al. patent. In this preferred embodiment the first timing mark
column further contains a mark having a length greater than the
length of any of the other marks and extending beyond the blank
spaces in order to inhibit photoelectric sensing apparatus of the
type described in the Hanson et al. patent form erroneously sensing
any writing in such spaces as an indicia in an indicia receiving
position.
BRIEF DESCRIPTION OF THE DRAWING
The FIGURE of the drawing is a plan view of a preferred embodiment
of the data processing form of the present invention.
DESCRIPTION OF THE PREFERRED EMBODIMENT
The data processing form of the present invention comprises a
generally rectangular shaped sheet of paper 10 or like material
having longitudinal and transverse axes, and at least one generally
straight edge 12 parallel with one of said axes. The straight edge
12 provides a reference edge for guiding the movement of the paper
10 through sensing apparatus of the type described in the Hanson et
al. and Sokolski et al. patents.
A series of indicia receiving locations 14 are indicated on the
sheet of paper 10. Each location 14 has a given number of positions
16 in which an indicia can be placed. The given number of positions
16 of each location 14 are generally equally spaced to form rows
generally perpendicular to the straight edge 12 of the sheet 10.
The rows are shown on the form as being numbered "1" through "50."
The series of locations 14 are equally spaced with each position 16
of said given number of positions 16 therein being aligned with
similar positions 16 of adjacent locations 14 to form five columns
generally parallel with said straight edge 12 of the sheet 10. The
columns are shown on the form as being indicated by the letters "a"
through "e."
A first timing mark column 24 containing a plurality of first
timing marks 26 is aligned with the e column of indicia receiving
positions 16, with one of the first timing marks 26 preceding each
indicia receiving location 14.
A second timing mark column 28 is spaced from the five columns a-e
of indicia receiving positions 16 and is aligned parallel with the
straight edge 12 of the sheet 10. The second timing mark column 28
contains (i) a start of sensing mark 30 having a first length; (ii)
a plurality of second timing marks 32 having a second length
different from said first length, each second timing mark 32 being
approximately aligned with a corresponding row of indicia receiving
positions 16 perpendicular to the straight edge 12 of the sheet 10;
and (iii) a termination of sensing mark 34 having a third length
different from both said first and second lengths.
Each of the second timing marks 32 is positioned with respect to
the first timing mark 26 preceding said corresponding aligned row
of indicia receiving positions 16 with which the second timing mark
32 is approximately aligned so as to be sensed after the completion
of sensing of the first timing mark 26. The precise distance 36
between the end of each of the first timing marks and the beginning
of the next second timing mark 32 in sequence depends upon the
speed with which the data processing form is advanced with in
relation to the photoelectric sensing apparatus during the sensing
of the indicia receiving positions 16. It is preferred that this
distance be such that there is approximately a 2 millisecond
interval between the completion of the sensing of each of the first
timing marks 26 and the beginning of the sensing of the next of
each of the second timing marks 32 in sequence. It is also
preferred that there be approximately a 4 millisecond interval
between the completion of the sensing of each of the indicia
receiving locations 14 and the beginning of the sensing of the next
succeeding first timing marks 26 in sequence.
The data processing form also includes blank spaces 38 indicated at
a position following the series of indicia receiving locations 14
in sequence. These blank spaces 38 are indicated for receiving
information related to the use of the form, such as "Name,"
"Subject," and "Date." In this preferred embodiment the first
timing mark column 24 further contains a mark 40 having a length
greater than the length of any of the other marks 26, 30, 32, 34
and extending beyond the blank spaces 38 in order to inhibit
photoelectric sensing apparatus of the type described in the Hanson
et al. patent from erroneously sensing any writing in such spaces
38 as an indicia in an indicia receiving position 16.
The data processing form of the present invention may be used with
either of the photoelectric sensing apparatus described in the
Hanson et al. and Sokolski et al. patents. The form may be so used
in the manner described in these two patents (U.S. Pat. Nos.
3,518,440 and 3,800,439), the essential disclosure of which is
incorporated herein by reference thereto.
* * * * *