Abstract: A text recorder of the type which includes a text display device to record text in intelligible form on a typewritten page or line or page-like display in response to character and function identifying signals, a keyboard with a plurality of alphabetic, numeric, symbol and function keys for actuation by an operator to produce a keyboard signal unique to the actuated key, decoding means responsive to keyboard signals from said keyboard to produce character and function identifying signals and wherein the decoding means includes a word completion means for producing one of at least two groups of one or more character identifying signals in response to actuation of a selectd key on said keyboard, each group of character identifying signals representing a different word ending and wherein the word completion means includes means for selecting among the group dependent upon the identity of one or more keys actuated prior to actuation of the selected key.

Abstract: A method of, and system for, increasing the number of characters available to be printed with a single print element. If a printer is printing from storage and the character being presented to the printer does not match the print element in use, a determination is made as to whether the character is in fact available on the element. If so, the character is caused to be printed. If not, a determination is made as to whether the presented character can be constructed from characters existing on the print element. If so, construction is caused to occur to avoid a print element change. If, however, the presented character does not exist on the print element and cannot be constructed from characters that do exist on the print element, a requirement for a print element change is signalled. Following a change, printing will continue with the new print element as long as characters are available, or can be constructed from available characters.

Abstract: A search system is provided that locates a reference point in a string of text-representative codes based on comparisons with an operator keyboarded text string (the address string). Such comparisons are automatically modified, however, to equate certain codes and code patterns that present an ambiguity to the operator in establishing the address string, e.g. a tab operation and a series of space operations may have the same apparent result for printing but are stored as different codes. By so expanding the acceptable "matching" code patterns selectively with respect to the codes presented for comparison, the likelihood of operator success in identifying a desired text location is increased significantly.

Abstract: A printer is provided with facilities for increasing the printing throughput. This involves a partial line turnaround operation. The printer has means to move a form or document past a print line, a ribbon drive assembly, and a print assembly incorporating a plurality of print wires arranged in print head groups, each group comprising a predetermined number of print wires. If, as an example, the print assembly has two, four, six, or eight print heads, each can accommodate eight wires in the embodiment described. The print wires are arranged in a slanted serrated pattern and provision is made herein to insure that the print heads move at least far enough to print their assigned character locations prior to the performance of any turnaround in individual lines being printed. Routine involves the accessing of tables stored in conjunction with a microprocessor, the tables indicating the optimum turnaround situations for the different print head configurations.

Abstract: A printer subsystem receives command and data information from a host system and retains a large number of font images in an associated storage area within the printer subsystem. A base font image set is ordinarily selected by the user but provision is made to dynamically change the font images as may be required in a real time fashion during actual printing operations. The font images are stored in a compressed form in the storage area. Routines involve use of pointer tables and data tables. It is possible to select an entire set of new font images in place of the base set of images or to modify only selected character images within the base font image set.

Abstract: Tab codes produced at a typewriter keyboard are converted to a form for text storage that includes travel distance and destination information. By using a multiple section code with distinct tab code identifier bytes on either end, the overall tab code can be embedded with normal single byte character codes in a text string and processed specially during forward or reverse operations with storage. For forward operation on a text string, coded destination information is extracted from a preselected byte of the multisection code, upon detecting the tab identifier, and special logic, first extracts the destination information, and then automatically passes over the remainder of the code to arrive at the next code of the text string. By so indicating the tab destination in the tab code, a tab operation is enabled to be independent of the active tab settings at the time of playback.

Abstract: Characters are typed in reverse, i.e. light characters on a dark background by first typing all over the field of the character using an ink ribbon, back spacing and typing the character using a correcting ribbon. The first typing may be effected with a solid character covering the whole field in one or a few operations but, in the preferred embodiment is effected by repeatedly typing a vertical bar with tiny line feed increments, say 1/120". The first typing may take place on depression of a special key, which also effects the back spacing and the correcting ribbon; the character key is then struck. Preferably the whole sequence takes place automatically upon depression of the character key while a mode selector is in REVERSE mode.

Abstract: A printer for use in an office machine having a keyboard and including a typing element carrying type faces of the characters to be printed and mounted on a carriage for displacement along a line printing path and being rotatable to bring a selected type face into a printing position, and a control device responsive to signals from the keyboard and operative, immediately after a type face is brought into the printing position and before printing of the associated character, for effecting rotation of the typing element in a predetermined direction over a path of predetermined length and then in the direction opposite to the predetermined direction and over a path of the same predetermined length.

Abstract: An electric typewriter includes a RAM memory for storing selected characters to be printed and for storing data relating to the present escapement position and future escapement destination of a printing head of the typewriter. A control unit operates a printer to print the stored characters in the memory unit and, when a power interrupt occurs and power is subsequently restored, the control unit accesses particular position data in the memory in accordance with the angular position of a print shaft of the typewriter at the time of the power interrupt. The accessed data is employed to define a proper return escapement position for the printing head of the typewriter.

Abstract: According to the present editing printer, a printing head can print either on the first insertion line or on the second ordinary line by the operation of a keyboard, and the characters from the keyboard are also stored in a memory. An insertion end sign " " is printed at the end of the insertion characters on the first line. A group of characters from the first character to the character before the insertion end sign on the first line are inserted automatically in the second ordinary line by the aid of the memory, which provides clean output with no error after editing.

Abstract: A microprocessor controlled printer includes a forms feed assembly, a dot matrix print assembly, a ribbon drive assembly and a number of emitter assemblies associated with the foregoing to provide positional information during operation of the printer which prints on a line-by-line basis. During the printing of characters, such as Kanji characters, extremely accurate control of dot placement is required. In order to achieve a balance between the operating cycle times of the microprocessor and the forms feed assembly, the microprocessor analyzes emitter pulses in two stages. One stage involves use of relatively low frequency emitter pulses for start-up, normal speed, and high speed operations. Another stage involves use of an additional emitter track that produces high frequency pulses utilized by the microprocessor during stopping conditions to achieve greater precision in final positioning of the forms.

Abstract: Disclosed is a method and apparatus for establishing, verifying, and correcting tab settings and indexing parameters for text to be printed by a word processing system. The apparatus includes logic and related control networks for establishing a line of codes in memory indicative of the location and status of such tab settings and indexing parameters, for setting an electronic tab rack, for verifying and correcting such settings and parameters by, and responsive to, the advancement and backspacing of the printer carrier, and for producing a hard copy printout, during entry and playback, of such tab setting and indexing mode status.

Abstract: A low profile keyboard operating system in which a generally orthogonal matrix of mechanically movable row and column matrix members is disposed over the keyboard to be operated with the intersections of the matrix members adjacent to the keys, the arrangement being such that actuation of only one member at an intersection will not operate a key while operation of both members at an intersection actuates a key.

Abstract: A method and apparatus associated with word processing equipment for producing a preliminary printout of accessible lines of intermixed text characters and code characters representative of the format of such text. The apparatus includes logic controlled gates for selectively gating text codes, instruction codes, and reference line number codes to a print control coupled to, and controlling the printing by, a printer. Specific networks enable the printing of "font change" instructions and identifications and characteristic identifier symbols indicative of the presence of an instruction code. Audit print codes representing material ones of the instruction codes are substituted for the usual printer functional response to those instruction codes, that is, a code representation of the instruction code is printed instead of the printer executing the instruction.

Abstract: Actuators are positioned over the rows of keys in a keyboard to drive the keys in response to coded information from a computer or other source of digital signals. The mechanical driving force is transferred from solenoids positioned at one end of each row simultaneously to all of the actuators of that row. Additional solenoids positioned across the bottom of the keyboard sequentially unlatch selected actuators allowing them to drive their associated keys in response to the driving force. Additional solenoids are used to drive the shift mechanism and, if necessary, other individual keys.

Abstract: An attachment for remote control of a keyboard cmprising a series of selecting elements mounted for movement in a first direction between inoperative and operative positions, each having a series of apertures; a series of push-bars mounted for movement in a second direction, each having an elongated member oriented longitudinally in a third direction; a plurality of push-sticks, each being rotatably linked at one of its ends to one of the elongated members of push-bars and slidably linked at its other end to an aperture of one of the selecting elements; devices for selectively moving the selecting elements and push-bars; a plurality of push-rods mounted for movement in the second direction, each having its lower tip suface bearing on top of the corresponding key, and its upper tip surface being acted upon by the corresponding push-stick in the direction that causes the corresponding key to move from inoperative position to operative position only when the selecting element linked to the push-stick was first m

Abstract: Actuator for use with a push-button keyboard in which the keys are arranged in an array of intersecting rows and columns. A single solenoid is provided for each row and column, and means operated by the solenoids causes the key to be depressed at the intersection of a row or column for which the solenoids are energized.

Abstract: A control arrangement for a belt printer having characters arranged in successive series on an endless belt and passed continuously in front of a print support and hammers adapted to be actuated by a control device. A recording store is connected to a calculating unit and records information relating to each character to be printed along a line on the print support. A scan register contains information relating to the coincidences between the characters and the striking members at any given time. Information corresponding to the condition when a predetermined character is to be struck by a given hammer in the course of a given scan, is stored in a storage member along with information indicative of whether or not the predetermined character is repeated in the series of characters.

Abstract: A serial printer comprises a carriage, a print member rotatably mounted to the carriage and including a plurality of character elements, a first drive coupled to the print member for rotating the print member to a desired rotational position in order to place a selected character element at a printing position adjacent a record medium to be printed upon, a second drive coupled to the carriage for moving the carriage along a predetermined path whereby the print member is caused to move to a desired printing position along the path, a first servo control coupled to the first drive means and responsive to a first set of input data and instructions for controlling the direction and speed of rotation of the print member, second servo control means coupled to the second drive and responsive to a second set of input data and instructions for controlling the direction and speed of movement of the carriage, and a programmed data processor coupled to the first and second servo control system for supplying at least some

Abstract: Automatic card embossing apparatus includes a rotatable embossing wheel carrying about its periphery punch and die pairs for all characters available for embossing. Each character position of the wheel defines an address and the wheel is controlled for rotation to a desired address for embossing the character there-located. Data identifying all embossable characters is processed to derive three control numbers for each character, the first control number identifying the corresponding wheel address for the corresponding punch and die pair, the second number identifying the horizontal position on the card where the character is to be embossed, and the third control number identifying the line number on the card. The data is sorted into ascending order of wheel addresses. In operation, a card is transported to a reference position relative to the embossing wheel and the embossing wheel is rotated to the address of the first control number.