Abstract: An automated film encoding and decoding system for bringing photographic film from the state of exposure to subject matter through all of the processes required to produce finished photos and package the same. The system includes an encoder coordinately operative with a camera for the placement of a human and machine readable code on the film the decoder capable of reading the code for the control of production-processing equipment in laboratories provided with such equipment. The human readability of the code accommodates production-processing of the film by attendant personnel and also allows for quality control check of automated production-processisng equipment. The encoding includes film frame identification information, subject matter information and registration mark information all of which may be utilized on a single exposure situation.

Abstract: An automated film encoding and decoding system for bringing photographic film from the state of exposure to subject matter through all of the processes required to produce finished photos and package the same. The system includes an encoder coordinately operative with a camera for the placement of a human and machine readable code on the film the decoder capable of reading the code for the control of production-processing equipment in laboratories provided with such equipment. The human readability of the code accommodates production-processing of the film by attendant personnel and also allows for quality control check of automated production-processing equipment. The encoding includes film frame identification information, subject matter information and registration mark information all of which may be utilized on a single exposure situation.

Abstract: A deadbolt lockset having a linkage between the bolt and the bolt housing. The attachment point between the bolt and the first link can be selected from among several attachment points, and the connection between the bolt housing and a second link can be selected from among several locations to give a selected backset and a selected throw. A particular feature is the capability to provide a substantially longer throw than with conventional deadbolt assemblies.

Abstract: Obstruction detector apparatus operatively coupled to an automatic electric door operator compares the time span of transmission and receipt of reflected echoes of ultrasonic energy within a door passageway obstruction zone with predetermined time spans in order to prevent door closure under conditions indicating passageway obstruction or system malfunction. Signal generators provide timing signals respectively representative of the anticipated time span of reflected echoes from locations in front of, and beyond, the door jamb opposite the ultrasonic transmitter and receiver transducers for comparison by a relay controller with the time of generation of a signal representing a reflected echo at the transducer receiver, the relay controller appropriately actuating a door operator relay in response to such comparison.

Abstract: A system for altering the size of an image by a desired magnification after optical scanning thereof provides a plurality of output scan values differing in number from the number of sampled scan signals produced during the optical scanning. The output scan values are representative of the density of the image at pixel locations spaced in rows and columns across the image, with the spacing of the pixel locations being dependent upon a selected magnification value. The system includes scanning means for providing a series of sequences of sampled scan signals, and converter means for converting the sequences of sampled scan signals to corresponding sequences of digital scan values. A control circuit is responsive to a selected magnification value for providing a plurality of interpolation control values in synchronism with the successive sequences of digital scan values.

Abstract: A system for altering the size of an image by a desired magnification after optical scanning thereof provides a plurality of output scan values differing in number from the number of sampled scan signals produced during the optical scanning. The output scan values are representative of the density of the image at pixel locations spaced across the image in dependence upon a selected magnification value. The system includes scanning means for providing the sample scan signals and converter means for converting the sampled scan signals to a corresponding sequence of digital scan values. A control circuit is responsive to a selected magnification value for providing a plurality of interpolation control values in synchronism with the sequence of digital scan values. The interpolation control values indicate the spatial relationship of output scan values with respect to pairs of successive digital scan values.

Abstract: A document scanning system having a platen for scanning bulky documents and two separate exposing stations for front and reverse side scanning of automatically fed sheet-type original documents. The platen and the two exposing stations are arranged in a common plane for scanning by scanning elements carried on a linearly driven carriage. Image sensing is performed by CCD arrays mounted on the scanner carriage. Scanning at the two exposing stations is conducted with the scanner carriage stationary, while platen scanning proceeds with the scanner carriage moving linearly at a uniform speed.

Abstract: An illuminator for a traveling scanner of a document scanning system is disclosed. The illuminator comprises an elliptic-cylindrical surface of about one-half an ellipse in section with a line light source lamp located on one elliptic focal line. The illuminator is positioned so that the line of a document being copied is located at the other elliptic focal line. A reflecting cylindrical light baffle is positioned over the lamp to reflect light that would otherwise not strike the elliptical reflecting surface back through the source and onto the elliptical reflecting surface. The open end of the ellipse is covered with a heat filter to protect the material being copied. The ellipse is set at a relatively small angle, and a perpendicular reflection of material from the document being copied passes through a slot in the heat filter and a slot in the base of the ellipse for further sensing.

Abstract: In optical character recognition systems scanning may be accomplished by a multi element scanning matrix, in which each element detects a portion of the reading field and an output voltage is generated for each element depending upon whether the element is looking at the dark character or a portion of the background which usually is of a lighter shade. The instantaneous output of each element is digitized with a value dependent upon the amount of light detected by the cell and may have a value from 0 to fifteen. This digitized quantized information is then used to make a black/white decision for each cell, for example, if the information is background or is representative of a character being read. Improper referencing of the background due to reflective variation caused by multi colored backgrounds or different paper textures may cause an incorrect reading and make a black/white decision which is in error.

Abstract: A scanned photocell array has the gain for each photocell channel automatically controlled by establishing a scale range based upon the media being scanned. The apparent gain of each cell is varied by modulating the reference input of an analog to digital converter at the photocell scan rate.

Abstract: To read characters printed on a document it is transported beneath a self-scan photocell array extending substantially the entire width of the document. Output signals from the photocells of the array are scanned by a plurality of channels, amplified and converted into a digital data format representing the character patterns. The digital data is then processed to memory electronics and search electronics to select lines of character pattern data for transmission to a character recognition unit. The search electronics compresses the character data into search segments to evaluate the top and bottom position of character lines. Further, the search electronics determines line linkages between the elements of one search segment of compressed data and the elements of the preceding search segments for future processing in a line tracker. The line tracker provides signals to extract character lines from a temporary storage for transmission to a line block memory.