US 4,906,114 AGranted

Electronic typewriter

AssigneeMatsushita Electric Industrial Co., Ltd.

InventorsKenji Tanaka, Kiyotaka Mori

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Abstract

An electronic typewriter has a function of making a rectangular frame, which is composed of a horizontal line and a vertical line. To make a frame in the course of the sequential input of characters, an operator moves the printing position to the upper left vertex of the frame that is to be printed, and then, the operator depresses a specific key, which is called frame key, when the printing position arrives at the upper left vertex of the frame that is to be printed. After the operator puts in characters or spaces that are to be inserted in the frame, the operator moves the printing point to the lower right vertex of the frame and the operator then depresses the frame key again. By the operations of twice depressing the frame key, the printing position data for making the frame is taken in. The electronic typewriter then calculates both the starting and ending positions of the segments that compose the frame. At the conclusion of this calculation, the electronic typewriter prints the frame by using underline type and vertical bar type.

Claims26

Dependent claims

An electronic typewriter comprising:

character keys for entering data corresponding to characters;
a frame key for entering data defining a printing point of two diagonal vertices of a rectangular frame that is to be printed;
control keys for entering data defining movement of a printing point indefined directions;
a printing means for printing characters in response to data entered by said character keys, said frame key and said control keys, and for moving the printing point for a distance character and control in said defined directions corresponding to each of said keys;
a distinguishing means for determining whether or not an operated key is said frame key;
a memory means for storing in response to a first operation of said frame key a first printing point data corresponding to one of two diagonal vertices of said rectangular frame, and for storing in response to a second operation of said frame key after some operation of other keys a second printing point data corresponding to the other of two diagonal vertices of said rectangular frame;
said second printing point data being calculated by the addition of each amount of moving distance corresponding to each of keys that are operated between two operations of said frame key such that said rectangular frame is of a size which is dependent upon the keys which have been operated between two operations of said frame key;
a control means for calculating in response to said second operation of said frame key the coordinate data of a starting position and an ending position of lines which compose said rectangular frame to be printed according to data stored in said memory means and in accord with said defined directions of printing point movement;
said printing means printing said frame consisting of lines according to said control means.

6 more elements

Dependencies are inferred from the claim text.