Display system
阅读：967发布：2022-04-18
专利汇可以提供Display system专利检索，专利查询，专利分析的服务。并且A multiple beam alpha-numeric display system wherein a plurality of text lines are formed simultaneously with the top segments of the characters in a text line being formed on a first pass and successively lower segments being formed in subsequent passes. A non linear vertical sweep is used to compress the interline spacing of horizontal traces within a text line and to increase the interline spacing between text lines. To minimize display distortion, the multiple electron beams are oriented to cross one another at the center of the deflection yokes.，下面是Display system专利的具体信息内容。
1. An instantaneous alpha-numeric visual read-out system comprising a phosphor screen visible to viewers; means providing at least one electron beam adapted for scanning said screen; horizontal and vertical deflection means for controlling the position of said electron beam on said screen; a horizontal deflection drive circuit for energizing said horizontal deflection means to obtain repetitive horizontal traces of said electron beam across said screen; means controlling the intensity of said electron beam in synchronism with said horizontal traces to achieve successive text line displays on said screen, each text line display including a plurality of successive horizontal traces; and a vertical deflection drive circuit for energizing said vertical deflection means to compress the interline spacing within a text line and to increase the interline spacing between text lines including circuit means for generating a vertical sweep signal, circuit means for generating a diddle sweep signal with a repetition period corresponding to the number of horizontal traces which occur during a vertical sweep of said vertical sweep signal, and circuit means for combining said vertical sweep signal and said diddle sweep signal and applying the combined signal to said deflection means.
2. Apparatus according to claim 1 comprising a plurality of electron beams each adapted for scanning said screen, the positions of said beams being controlled by said horizontal and vertical deflection means.
3. Apparatus according to claim 2 wherein said beams are oriented to cross one another substantially at the center of said horizontal and vertical deflection means.
4. Apparatus according to claim 2 wherein said beams are angularly separated to form adjacent text line displays on said screen.
5. An instantaneous alpha-numeric visual read-out system comprising a phosphor screen visible to viewers; means providing a plurality of electron beams each adapted to scan said screen; horizontal and vertical deflection means for controlling the positions of said beams on said screen, said electron beams being oriented to cross one another substantially at the center of said horizontal and vertical deflection means; a horizontal deflection drive circuit for energizing said horizontal deflection means to obtain repetitive horizontal traces of said beams across said screen; means individually controlling the intensity of said electron beams in synchronism with said horizontal traces to achieve successive multi-line text displays on said screen; and a vertical deflection drive circuit for energizing said vertical deflection means to move said beams vertically to achieve the desired interline spacing between horizontal traces.
6. Apparatus according to claim 5 wherein said means providing a plurality of electron beams comprises a plurality of separate electron guns oriented to produce electron beams which cross substantially at the center of said horizontal and vertical deflection means.
7. Apparatus according to claim 5 wherein each of said multi-line text displays is produced by a single one of said electron beams.
8. Apparatus according to claim 5 wherein said vertical deflection drive circuit so energizes said vertical deflection means that the interline scan spacing within said text lines is less than the interline scan spacing between text lines.
9. Apparatus according to claim 5 wherein said deflection drive circuits and means controlling intensity of said electron beams are arranged to provide a plurality of interlaced frames making up a complete scanning frame.
10. An instantaneous alpha-numeric read-out system comprising a cathode ray tube including at least one electron beam; a memory for storing coded data designating the characters of a display frame; a pair of alternately operable registers coupled to said memory each capable of storing coded data designating characters to be displayed in a text line on said cathode ray tube; a pulse source connected to said alternately operable registers to advance said data in one of said registers for providing successive character designations at a rate controlled by said pulse source while the other of said registers receives data from said memory; circuit means for providing successive horizontal trace designations for traces of said electron beam; character generation circuit means operatively connected to said cathode ray tube, said alternately operable registers and said circuit means to control the intensity of said electron beam according to said successive horizontal trace and character designations; horizontal deflection circuit means coupled to said cathode ray tube to control the horizontal position of said electron beam; first counter means connected to said pulse source and operative to produce an output pulse after receiving a predetermined number of pulses from said pulse source, said first counter means being connected to said horizontal deflection circuit means to trigger successive horizontal sweeps of said electron beam, and being connected to said circuit means to advance said circuit means for successive horizontal trace designations; vertical deflection circuit means coupled to said cathode ray tube to control the vertical position of said electron beam; and second counter means coupled to said pulse source and said vertical deflection circuit means to trigger successive vertical sweeps of said electron beam in response to a predetermined number of pulses from said pulse source.
11. Apparatus according to claim 10 wherein the total number of horizontal traces of a display frame is an odd number and wherein said second counter means produces a pulse triggering a new vertical sweep each time one-half the total number of horizontal traces of a display frame have been completed to provide two interlaced display fields per display frame.
12. Apparatus according to claim 11 wherein the pulse produced by said second counter means occur at a 60 hertz rate.
13. Apparatus according to claim 12 wherein said output pulses from said first counter means occur at a 15.75 kilohertz rate.
14. Apparatus according to claim 13 wherein the total number of horizontal traces of a display in 525 and the nUmber of horizontal traces in a display field is 262.5.
15. Apparatus according to claim 10 wherein said alpha-numeric displays appear in successive text lines, each text line including a predetermined number of successive horizontal traces formed by said electron beam; and wherein said circuit means for providing successive horizontal trace designations resets each time said predetermined number of horizontal traces have been designated.
16. Apparatus according to claim 15 wherein said vertical deflection circuit means provides a linear vertical sweep signal; and further comprising a diddle sweep circuit operatively coupled to said vertical deflection circuit means to superimpose a diddle sweep signal upon said vertical sweep signal, said diddle sweep circuit being coupled to said circuit means and operative to initiate a new diddle sweep each time said circuit means is reset.
17. Apparatus according to claim 10 wherein said cathode ray tube includes a plurality of electron beams and wherein the system includes a separate pair of alternately operable registers for storing coded data designating successive characters for each of said electron beams, one register at a time of each of said pairs being advanced by pulses from said pulse source.
18. Apparatus according to claim 10 wherein said plurality of electron beams simultaneously form adjacent text lines of characters on said cathode ray tube.
19. Apparatus according to claim 10 wherein the cathode ray tube display consists of a plurality of interlaced fields and wherein said circuit means for providing successive horizontal trace designations includes a separate register for each of said fields.
20. An instantaneous read-out system comprising: a phosphor screen visible to viewers; means providing at least one electron beam adapted for scanning said screen; horizontal and vertical deflection means for controlling the position of said electron beam on said screen; a horizontal deflection drive circuit for energizing said horizontal deflection means to obtain repetitive horizontal traces of said electron beam across said screen, each horizontal trace being divided into a predetermined number of horizontal increments; storage means for storing coded data designating the characters of a display frame,; a pair of alternately operable registers coupled to said storage means each capable of storing coded data for designating characters of a complete text line display; circuit means coupled to said registers to advance the data in one of said registers in synchronism with the movement of said electron beam during each horizontal trace while the other of said registers is connected to receive data from said storage means; decoding means coupled to the one of said registers being advanced in synchronism with said electron beam for designating selected ones of said horizontal increments for display according to the coded character then designated; means coupled to said storage means and said means providing said electron beam to control said beam in on-off fashion according to the horizontal increments designated for display; and a vertical deflection drive circuit for energizing said vertical deflection means.
21. An instantaneous alpha-numeric visual read-out system comprising a phosphor screen visible to viewers; means providing a plurality of electron beams each adapted to scan said screen; horizontal and vertical deflection means for controlling the positions of said beams on said screen, said electron beams being oriented to cross one another substantially at the center of said horizontal and vertical deflection means; a horizontal deflection drive circuit for energizing said horizontal deflection means to obtain repetitive horizontal traces of said beams across said screen; means individually controlling the intensity of said electron beams in synchronism with said horizontal traces to achieve successive multi-line Displays on said screen, wherein each of said multi-line text displays being produced by a single one of said electron beams, and said electron beams simultaneously produce a group of adjacent text lines corresponding to the number of electron beams in the apparatus; and a vertical deflection drive circuit for energizing said vertical deflection means to move said beams vertically to achieve the desired interline spacing between horizontal traces.
22. An instantaneous alpha-numeric visual read-out system comprising a phosphor screen visible to viewers; means providing a plurality of electron beams each adapted to scan said screen; horizontal and vertical deflection means for controlling the positions of said beams on said screen, said electron beams being oriented to cross one another substantially at the center of said horizontal and vertical deflection means; a horizontal deflection drive circuit for energizing said horizontal deflection means to obtain repetitive horizontal traces of said beams across said screen; means individually controlling the intensity of said electron beams in synchronism with said horizontal traces to achieve successive multi-line text displays on said screen; a vertical deflection drive circuit for energizing said vertical deflection means to move said beams vertically to achieve the desired interline spacing between horizontal traces; and wherein said vertical deflection drive circuit so energizes said vertical deflection means that the interline scan within said text lines is less than the interline scan spacing between text lines, and said electron beams simultaneously produce a group of adjacent text lines equal to the number of electron beams in the apparatus and wherein the interline scan spacing between text lines is greater than the space occupied by a group of adjacent text lines.
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