GB2087611A - Apparatus for the input of information - Google Patents
Apparatus for the input of information Download PDFInfo
- Publication number
- GB2087611A GB2087611A GB8124361A GB8124361A GB2087611A GB 2087611 A GB2087611 A GB 2087611A GB 8124361 A GB8124361 A GB 8124361A GB 8124361 A GB8124361 A GB 8124361A GB 2087611 A GB2087611 A GB 2087611A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sheet
- stylus
- resistive surface
- paper
- writing implement
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0484—Interaction techniques based on graphical user interfaces [GUI] for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range
- G06F3/04842—Selection of displayed objects or displayed text elements
Abstract
Apparatus for the input of information to a computer comprises a support surface adapted to receive and locate a sheet of paper or the like copy bearing an identifying code, position recognising means arranged to determine the position of a stylus or writing implement movable over the surface, identification means adapted to recognise the identifying code on the sheet, and means for transmitting to the computer data corresponding to the position of the stylus or writing implement and to the identifying code. The support surface may be a pressure-sensitive pad with means for providing an electrical signal indicating the position of the point of pressure on the surface of a stylus or writing implement. The identification means may be an optical reader device 26 for reading a printed code on the sheet. The computer can be programmed to process the data transmitted by the position recognising means in a particular manner in accordance with the code read by the identification means, thus avoiding the need for a supplementary input to the computer through a keyboard or the like. <IMAGE>
Description
SPECIFICATION
Apparatus for the input of information
This invention relates to apparatus for the input of information into a computer or other processor device.
It is well known that graphical information and the like can be inputted into a computer by means of a cursor coupled magnetically, acoustically or optically with a writing surface, or by means of a pressure sensitive writing surface acted upon by a stylus or writing implement. Information relating to the coordinates of the position of the implement on the writing surface are supplied to the computer to enable it to "follow" manual movement of the implement.It has been proposed that with suitable software the computer could recognize handwritten characters and numerals enabling data to be entered directly by writing with the cursor and, in another proposal, a sheet of paper bearing for example a keyboard layout is placed over the writing surface - with the format of the sheet having been previously entered into the computer - so that movement of the stylus to a particular key is sufficient to input the value or function associated with that key.
These known arrangements simplify the input of information-in various circumstances but the object of the present invention is to provide improved apparatus for the input of information which simplifies the procedure still further.
Accordingly, the present invention consists in apparatus for the input of information to a processor device, comprising a support surface adapted to receive a hard copy bearing an identifying code, position recognising means arranged to determine the position of a stylus or writing implement movable over the surface, identification means adapted to recognise the identifying code on the hard copy, and means for transmitting to the processor device data corresponding to the position of the stylus or writing implement and to the identifying code.
The data can be transmitted to a processor storing a plurality of process instructions corresponding to the coded hard copies and arranged to process the data from the position recognising means in accordance with a process instruction selected on the basis of the data corresponding to the identifying code.
Preferably, each hard copy bearing a particular identification code defines a particular arrangement of labelled discrete locations on the said surface, the process instruction corresponding to the identification code including a correlation between the positions of the said locations and the labels associated with them.
Since the apparatus can recognise which hard copy is being used, and the computer or other processor to which the apparatus is linked can deal with the positional information transmitted by the apparatus in a manner appropriate to the particular hard copy, the input procedure is greatly simplified. There is no need for supplementary information to be entered on a keyboard or similar device and with suitably designed hard copies it is
possible for the input procedure to involve little
more than conventional check list or form filling
procedures.
The invention will now be described, by way of example, with reference to the accompanying drawings, in which:
Figure 1 is a perspective view of apparatus
according to the invention,
Figure 2 illustrates diagrammatically the
mounting of components in the head of the apparatus,
Figure 3 is a perspective view of a pressure sensitive pad assembly of the apparatus, with part broken away,
Figure 4 is a fragmentary cross-section on line lV-lV of Figure 3, to a larger scale,
Figure 5 is an underneath plan view of a printed circuit board forming part of the pad assembly,
Figure 6 is a schematic circuit diagram of the apparatus, and
Figure 7 shows a typical format for sheets which can be used with the apparatus.
Referring to the drawings, apparatus for the input of information to a computer comprises a pressure-sensitive pad 10 supported by a two-part casing 12. The upper part 14 of the casing 12 defines a shallow recess 16 shaped to receive and locate a sheet of A4-size paper, with the sheet extending beneath a head 18 which serves both to hold the paper in position and to house components of the sheet identification device as described below.
The head 18 is pivoted for rotation about a horizontal axis 20, by means of a pair of shafts 22 projecting one from each end of the head 1 8 and engaging in mounting holes in side members 24 of the casing 12. The pivotal axis 20 is close to the rear wall of the head 1 8, so that the head can be pivoted upwards to enable a sheet of paper to be inserted beneath the head. When the head is released, the end of the sheet of paper is trapped between the flat lower face of the head and the surface of the pad 10. The weight of the head 1 8 is sufficient to keep its lower face in engagement with the sheet of paper.
Mounted within the head 18 is an array 26 of
LED's (light-emitting diodes operating in the infrared part of the spectrum and of photodetectors, such as phototransistor. As shown in Figure 2, each LED 28 is positioned so that the radiation emitted from it falls onto a sheet of paper 2 beneath the head 18, the radiation passing through a transparent plastics window 32 in the lower wall of the head 18. Radiation reflected from the paper is detected by a photodetector 30 mounted next to the LED 28, so that the circuitry associated with the photodetector can detect from the output of the photodetector whether the area of the sheet beneath the window 32 is black or white.Eight such pairs of LED's and photodetectors are arranged in a row in the head 18, so that each can inspect, through its window 32 one block in a row of blocks 4 (Figure 7) printed in the corresponding position of the sheet of paper 2. Each block can be printed black or left unprinted, so that the row of blocks forms a code representing an eight-digit binary number which can be read by the LEDphotodetector array and associated circuitry.
As shown in Figures 3 to 5, the pressuresensitive pad 10 comprises a conductive rubber sheet 40, providing the upper surface of the pad, a resistive layer 42 and a mesh separator 44 sandwiched between the conductive sheet 40 and resistive layer 42. The resistive layer 42 consists of a plastics film having on its upper face a uniform resistive coating, e.g. of carbon. The film lies flat against and is supported by the reverse face of a printed circuit board 46 and is fixed to the board by a number of brass bolts 48 passing through holes in the board. The bolts also provide an electrical connection between the resistive layer 42 and pairs of conducting tracks 50 and 52 on the lower face of the printed circuit board 46, to enable a voltage to be applied to the resistive layer, alternately in two mutually perpendicular directions (the "X"-direction and "Y"-direction as shown in Figure 3).To this end, two rows of equally spaced bolts along the two shorter edges of the printed circuit board are each connected, through a conductive pad 54, to one of the tracks 52, and rows of equally spaced bolts along the two longer edges are similarly connected to the tracks 50. The number of bolts in the row along each edge is equal to the number in the row along the opposite edge. Each bolt 48 is connected to the appropriate track 50 or 52 through a respective diode 56, the diodes being arranged as shown in Figure 6. To ensure a good contact between each bolt 48 and the resistive surface of the resistive layer 48, a gold-plated washer 58 is interposed between that surface and the head of each bolt. A small piece of insulating material 60 is positioned over the head of each bolt 48 to prevent direct contact between the bolt and the conductive sheet 40.
The mesh separator 44 consists of a fine woven mesh of insulating material such as nylon. The mesh normally holds the conductive sheet 40 out of contact with the resistive layer 42, but allows contact to be made between the two under pressure from a pointed instrument such as a stylus or ball-point pen. A 1-2 mm mesh with a thickness of about 0.1 mm has been found to be suitable.
The conductive sheet 40 is of a soft conductive rubber of low resistance. An electrical connection to the conductive sheet 40 is made through bolts 62 which pass through the sheet and the printed circuit board 46 in a peripheral area of the board to which the resistive layer 42 does not extend, the bolts 62 making contact with a conducting track on the lower face of the printed circuit board.
The pressure-sensitive pad 10 is mounted in the lower part of the casing 1 2 and the upper part of the casing is fitted over it so that the pressuresensitive area of the pad appears within the recess
16. The components of the electronic circuitry of the apparatus are housed within the lower part of the casing, some being mounted on the printed circuit board 46. The casing may also house storage cells to provide an internal power supply for the apparatus, as an alternative to an external power supply.
As shown in Figure 6, the apparatus includes switching circuits 72 which, under the control of a microprocessor 70, alternately apply a voltage across the pairs of conductive tracks 50 (marked X1 and X" in Figure 6) and 52 (marked Y' and Y").
When a voltage is applied across X1-X1,, the potential at the surface the resistive layer 42 falls uniformly across the surface in the X-direction. If point contact is made between the conducting sheet 40 and the resistive layer 42, the voltage between the conducting sheet 40 and the conducting track X' provides a measure of the position of the point of contact in the Y-direction.
Similarly, when a voltage is applied across Y,-Y1,, the voltage at the conductive sheet provides a measure of the position of the point of contact in the Y-direction, and measurement of the two voltages provides a unique definition of the position of the point of contact. The voltage output of the conductive sheet 40 is supplied to the microprocessor 70 through an analogue to
digital convertor 74.
The microprocessor 70 also controls
energisation of the LED's 28 of the array 26 and
receives the outputs of the photodetectors 30 through interface circuit 76.
The apparatus also includes alternative serial and parallel interface circuits 78 and 80 through which the microprocessor can communicate with the computer or other devices to which information is to be supplied.
In operation, a voltage is applied across the terminals X'-X", and when a non-zero voltage appears on the conductive sheet 40, indicating that a pen or stylus has been pressed onto the pad, the voltage giving the x-co-ordinate of the point of contact is detected and the corresponding output of the analogue-to-digital convertor 74 is held in the microprocessor 70. The voltage across terminals X,-X11 is then removed and a voltage applied across terminals Y'-Y", and the voltage on conductive sheet 40 representing the y-coordinate is supplied through the analogue-todigital convertor to the microprocessor 70. These steps of reading the x- and y-co-ordinates are repeated until satisfactory readings are obtained.
The LED's 28 of the array 26 are energised on detection of a non-zero voltage at the conductive sheet 40, indicating the "pen-down" condition, so that the code on the sheet of paper placed on the pressure-sensitive pad can be read and held in the microprocessor. When satisfactory readings of the x- and y-co-ordinates have been obtained, the readings are outputted to the host computer or processing device together with the sheet identification code. When the voltage at the conducting sheet 40 returns to zero, indicating that the pen or stylus has been lifted, the LED's are de-energised and the terminals X' and X" are again energised to wait for the next "pen down" condition.
Figure 7 illustrates the format of a stock control sheet which can be used with the apparatus. The code 4 identifying the sheet is printed near the top of the sheet. Each stock item is listed on the sheet against one or more "boxes" 6 in predetermined unique positions, so that data relating to that item can be inputted to the computer by simply pressing a pen, pencil or stylus onto the appropriate "box". The sheet is also printed with other "boxes" in predetermined locations, for example to enable numerical data to be entered through the apparatus. The host computer has stored information it to identify the information from the position of the contact point on the sheet in conjunction with the sheet identification data read from the code 4, and process the information in accordance with the sheet identification.The need for information identifying the sheet to be entered through a keyboard or similar device is therefore obviated.
The information inputted to the host computer may consist simply of data or of instructions to the computer, e.g. to call up a particular program to process the data. The information may be supplied in various forms, e.g. in binary of ASC11 codes.
It will be apparent that the apparatus can be used to input information to a computer wherever the information can be set out in a standardised format, e.g. on stock control sheets, business forms or medical records. Existing standard forms can be readily modified by printing an identifying code onto the forms. The apparatus could also be used, for example, with sheets containing multiple-choice questions, with feedback from the computer through a visual display unit. The apparatus could also be used to input graphical information to a computer.
It will be appreciated that modifications could be made in the described embodiment. For example, instead of relying on the detection of a non-zero voltage on the conductive sheet 40 to indicate the "pen down" condition, the apparatus may include a detection circuit 82 (Figure 6) arranged to measure the resistance between the conductive sheet 40 and the resistive layer 42 and to provide an output signal when the resistance falls below a predetermined level. Instead of using a coated plastics film bolted to the printed circuit to provide the resistive layer 42, a resistive coating could be applied directly to the surface of the printed circuit, the electrical connection with the conducting tracks on the underside of the board being made by means of plated-through holes extending between conducting pads on the two surfaces of the board.
The pressure sensitive pad 10 could take other forms, or could be replaced by a surface coupled magnetically, acoustically or optically to a stylus.
The array of LED's and photodetectors should be replaced by other means for reading an appropriate identifying code from the sheet of paper, such as a magnetic read head or a punched hole reader. The apparatus could be arranged to work with sheets of paper of different size, or with other forms of hard copy such as microfiche.
Claims (12)
1. Apparatus for the input of information to a processor device, comprising a support surface adapted to receive a hard copy bearing an identifying code, position recognising means arranged to determine the position of a stylus or writing implement movable over the surface, identification means adapted to recognise the identifying code on the hard copy, and means for transmitting to the processor device data corresponding to the position of ths stylus or writing implement and to the identifying code.
2. Apparatus as claimed in claim 1, in which the hard copy is a sheet of paper or the like.
3. Apparatus as claimed in claim 2, in which the indentification means comprises an optical reader device for reading a printed code on the sheet of paper or the like.
4. Apparatus as claimed in claim 3, in which the optical reader device comprises an array of light emitters and co-operating diodes positioned to sense variation in the degree of reflection from predetermined discrete areas on the sheet of paper or the like.
5. Apparatus as claimed in claim 3 or claim 4, in which the optical reader device is mounted in a head movable against the sheet of paper or the like, the head serving also to clamp the sheet against the said support surface.
6. Apparatus as claimed in any one of claims 2 to 5, in which the position recognising means comprises a pressure sensitive device which forms the said support surface and which provides a signal indicating the position of the point of pressure on the surface of a stylus or writing implement.
7. Apparatus as claimed in claim 6, in which the pressure sensitive device comprises a sheet of electrically conductive material overlying and spaced from an electrically resistive surface and arranged so that on application of pressure to the conductive sheet it is moved into contact with the resistive surface at the location of the applied pressure, means for applying an electric voltage across the surface alternately in two different directions and means for detecting the voltage applied to the conductive sheet at the point of contact with the resistive surface thereby to detect the position of the point of contact in the two directions.
8. Apparatus as claimed in claim 7, in which the conductive layer and resistive surface are separated by a fine mesh of insulating material.
9. Apparatus as claimed in claim 7 or claim 8, in which the resistive surface is attached to or formed on a printed circuit board which provides mechanical support for the resistive surface and the conductive sheet and also provides an electrical connection between the resistive surface and conducting tracks on the printed circuit board.
10. Apparatus as claimed in claim 9, in which the resistive surface is formed as a coating on a sheet of insulating plastics fixed to the printed circuit board by means of a number of bolts extending through the board, the bolts providing an electrical connection to the coating through gold-plated washers interposed between the heads of the bolts and the coating.
11. Apparatus as claimed in claim 9, in which the resistive surface is provided by a coating formed on one face of the printed circuit board and connected electrically to conducting tracks on the other face of the board via plated-through holes in the board.
12. Apparatus as claimed in any one of claims 7 to 11, in which means are provided to measure the resistance between the conductive sheet and the resistive surface and to provide an output signal when the resistance falls below a predetermined value, indication that contact has been made between the two under pressure of a stylus or writing implement.
1 3. Apparatus as claimed in any preceding claim and linked to a processor storing a plurality of process instructions corresponding to the coded hard copies and arranged to process the data from the position recognising means in accordance with a process instruction selected on the basis of the data corresponding to the indentifying code.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8124361A GB2087611A (en) | 1980-08-08 | 1981-08-10 | Apparatus for the input of information |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8025918 | 1980-08-08 | ||
GB8124361A GB2087611A (en) | 1980-08-08 | 1981-08-10 | Apparatus for the input of information |
Publications (1)
Publication Number | Publication Date |
---|---|
GB2087611A true GB2087611A (en) | 1982-05-26 |
Family
ID=26276495
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8124361A Withdrawn GB2087611A (en) | 1980-08-08 | 1981-08-10 | Apparatus for the input of information |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2087611A (en) |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0097368A2 (en) * | 1982-06-21 | 1984-01-04 | Industrial Electronic Engineers Inc. | Position indicator |
GB2127598A (en) * | 1982-09-16 | 1984-04-11 | Daniel Lemuel Phillips | Keyboard attachment |
DE3243679A1 (en) * | 1982-11-25 | 1984-05-30 | Preh Elektro Feinmechanik | TERMINAL OF A DATA PROCESSING SYSTEM |
DE3243712A1 (en) * | 1982-11-25 | 1984-05-30 | Preh Elektro Feinmechanik | Device for detecting an x/y position |
GB2130410A (en) * | 1982-09-28 | 1984-05-31 | Cole Electronics Limited | Data input apparatus |
EP0112975A1 (en) * | 1982-11-25 | 1984-07-11 | PREH, Elektrofeinmechanische Werke Jakob Preh Nachf. GmbH & Co. | Apparatus for detecting an x-y position |
DE3639351A1 (en) * | 1985-11-18 | 1987-05-21 | Canon Kk | Coordinate input system for copier - has front panel to enter coordinates for area of original to be copied |
GB2184274A (en) * | 1985-11-18 | 1987-06-17 | Canon Kk | Coordinate input apparatus |
GB2199433A (en) * | 1986-12-23 | 1988-07-06 | De La Rue Syst | Force monitoring system |
GB2219675A (en) * | 1988-06-09 | 1989-12-13 | Tipdata Limited | Generating computer readable codes |
EP0368997A1 (en) * | 1988-05-09 | 1990-05-23 | Conference Communications, Inc. | Interactive overlay driven computer display system |
GB2237426A (en) * | 1989-10-06 | 1991-05-01 | Fuji Xerox Co Ltd | Single-key input system |
EP0655674A2 (en) * | 1993-11-30 | 1995-05-31 | Hewlett-Packard Company | Data input apparatus |
US5796389A (en) | 1994-08-22 | 1998-08-18 | International Game Technology | Reduced noise touch screen apparatus and method |
EP1014293A2 (en) * | 1998-12-24 | 2000-06-28 | H- Soft EDV GmbH | Device and method for electronic capture of handwriting, in particular signatures |
US6259043B1 (en) | 1996-01-23 | 2001-07-10 | International Business Machines Corporation | Methods, systems and products pertaining to a digitizer for use in paper based record systems |
-
1981
- 1981-08-10 GB GB8124361A patent/GB2087611A/en not_active Withdrawn
Cited By (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0097368A3 (en) * | 1982-06-21 | 1984-05-23 | Industrial Electronic Engineers Inc. | Position indicator |
EP0097368A2 (en) * | 1982-06-21 | 1984-01-04 | Industrial Electronic Engineers Inc. | Position indicator |
GB2127598A (en) * | 1982-09-16 | 1984-04-11 | Daniel Lemuel Phillips | Keyboard attachment |
GB2130410A (en) * | 1982-09-28 | 1984-05-31 | Cole Electronics Limited | Data input apparatus |
US4568798A (en) * | 1982-11-25 | 1986-02-04 | Preh Elektrofeinmechanische Werke Jakob Preh Nachf. Gmbh & Co. | X-Y Position detector |
DE3243712A1 (en) * | 1982-11-25 | 1984-05-30 | Preh Elektro Feinmechanik | Device for detecting an x/y position |
EP0112972A1 (en) * | 1982-11-25 | 1984-07-11 | PREH, Elektrofeinmechanische Werke Jakob Preh Nachf. GmbH & Co. | Data processing terminal equipment |
EP0112975A1 (en) * | 1982-11-25 | 1984-07-11 | PREH, Elektrofeinmechanische Werke Jakob Preh Nachf. GmbH & Co. | Apparatus for detecting an x-y position |
DE3243679A1 (en) * | 1982-11-25 | 1984-05-30 | Preh Elektro Feinmechanik | TERMINAL OF A DATA PROCESSING SYSTEM |
DE3639351A1 (en) * | 1985-11-18 | 1987-05-21 | Canon Kk | Coordinate input system for copier - has front panel to enter coordinates for area of original to be copied |
GB2184274A (en) * | 1985-11-18 | 1987-06-17 | Canon Kk | Coordinate input apparatus |
US4766404A (en) * | 1985-11-18 | 1988-08-23 | Canon Kabushiki Kaisha | Coordinate input apparatus |
GB2184274B (en) * | 1985-11-18 | 1989-10-25 | Canon Kk | Image forming apparatus |
GB2199433A (en) * | 1986-12-23 | 1988-07-06 | De La Rue Syst | Force monitoring system |
EP0368997A4 (en) * | 1988-05-09 | 1991-12-04 | Conference Communications, Inc. | Interactive overlay driven computer display system |
EP0368997A1 (en) * | 1988-05-09 | 1990-05-23 | Conference Communications, Inc. | Interactive overlay driven computer display system |
GB2219675A (en) * | 1988-06-09 | 1989-12-13 | Tipdata Limited | Generating computer readable codes |
US5990873A (en) * | 1989-10-03 | 1999-11-23 | Fuji Xerox Co., Ltd. | Single-key input system |
GB2237426A (en) * | 1989-10-06 | 1991-05-01 | Fuji Xerox Co Ltd | Single-key input system |
GB2237426B (en) * | 1989-10-06 | 1993-12-01 | Fuji Xerox Co Ltd | Single-key input system |
EP0655674A2 (en) * | 1993-11-30 | 1995-05-31 | Hewlett-Packard Company | Data input apparatus |
EP0655674A3 (en) * | 1993-11-30 | 1996-05-22 | Hewlett Packard Co | Data input apparatus. |
US5629499A (en) * | 1993-11-30 | 1997-05-13 | Hewlett-Packard Company | Electronic board to store and transfer information |
US5796389A (en) | 1994-08-22 | 1998-08-18 | International Game Technology | Reduced noise touch screen apparatus and method |
US6476798B1 (en) | 1994-08-22 | 2002-11-05 | International Game Technology | Reduced noise touch screen apparatus and method |
US6734843B2 (en) | 1994-08-22 | 2004-05-11 | Igt | Reduced noise touch screen apparatus and method |
US6259043B1 (en) | 1996-01-23 | 2001-07-10 | International Business Machines Corporation | Methods, systems and products pertaining to a digitizer for use in paper based record systems |
EP1014293A2 (en) * | 1998-12-24 | 2000-06-28 | H- Soft EDV GmbH | Device and method for electronic capture of handwriting, in particular signatures |
EP1014293A3 (en) * | 1998-12-24 | 2004-02-11 | H- Soft EDV GmbH | Device and method for electronic capture of handwriting, in particular signatures |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |