JPS58189665U - Electronic viewfinder monitor enlargement circuit - Google Patents

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は撮像面の模式的説明図、第２図はモニタ画面の
模式的説明図、第３図は本実施例の回路ブロック図、第
４図はシフトクロック波形の説明図をそれぞれ示す。 主な図番の説明、３・・・第１遅延回路、４・・・第２
遅延回路、５・・・選択回路、６・・・切換回路、７・
・・電子ビューファインダ。FIG. 1 is a schematic illustration of an imaging plane, FIG. 2 is a schematic illustration of a monitor screen, FIG. 3 is a circuit block diagram of this embodiment, and FIG. 4 is an illustration of a shift clock waveform. Explanation of main figure numbers, 3...first delay circuit, 4...second
delay circuit, 5... selection circuit, 6... switching circuit, 7.
...Electronic viewfinder.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 撮像によって得られる輝度信号の水平走査区間の中央部
を高速で読み取り次の水平同期周期で低速で読み出す第
１遅延回路と、該第１遅延回路とは読み取りと読出を頂
度逆のタイミングで為す第２遅延回路と、前記両遅延回
路より得られる伸長信号を交互に選択する選択回路と、
該選択回路出力と前記輝度信号とを所定周期で切換える
切換回路と、該切換回路出力を入力し前記伸長信号に係
る映像をモニタ画面中央に映出せしめる電子ビューファ
インダとを、それぞれ配して成る電子ビューファインダ
のモニタ拡大回路。A first delay circuit reads the central part of the horizontal scanning section of the luminance signal obtained by imaging at high speed and reads it out at low speed in the next horizontal synchronization cycle, and the first delay circuit performs reading and reading at opposite timings at the top. a second delay circuit; and a selection circuit that alternately selects expanded signals obtained from both of the delay circuits;
A switching circuit that switches the output of the selection circuit and the luminance signal at a predetermined period; and an electronic viewfinder that receives the output of the switching circuit and displays an image related to the expanded signal at the center of the monitor screen. Electronic viewfinder monitor magnification circuit.