Electronic endoscope system provided with a means of imaging frozen pictures having few picture image smears

USRE34504E · kind E · reissue

Assignee

• Olympus Optical Co., Ltd. · JP

Inventors

• Masao Uehara · Mobara, JP
• Mashide Kanno · Hachioji, JP
• Katsuyuki Saito · Kokubunji, JP
• Akinobu Uchikubo · Hachioji, JP
• Katsuyoshi Sasagawa · Tokyo, JP
• Shinji Yamashita · Kawasaki, JP
• Akira Kusumoto · Hachioji, JP
• Kazunari Nakamura · Hachioji, JP
• Shinichiro Hattori · Tokyo, JP
• Keiichi Hiyama · Hino, JP
• Jun Hasegawa · Iwate, JP
• Masahiko Sasaki · Tokyo, JP
• Takehiro Nakagawa · Fukushima, JP

Key dates

• Filing date: Oct 11, 1990
• Grant date: Jan 11, 1994
• Expiry date: Oct 11, 2010

Classification

• Technology area (CPC —): General

Abstract

There is provided a frozen picture memorizing memory holding as a frozen picture image a picture image signal imaged by an electronic endoscope. By the operation of a frozen picture directing switch, whether the frozen picture is adapted to the memorizing condition or not is judged through a picture image movement detecting circuit. In case it is judged to be adapted to the memorizing condition, the picture image signal is memorized actually as a frozen picture image to obtain a clear frozen picture having little color smear and fogging.