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Alexander Graham Bell (/ ˈ ɡ r eɪ. ə m /; born Alexander Bell; March 3, 1847 – August 2, 1922) [4] was a Scottish-born [N 1] Canadian-American inventor, scientist, and engineer who is credited with patenting the first practical telephone.
David Edward Hughes (16 May 1830 – 22 January 1900), was a British-American inventor, practical experimenter, and professor of music known for his work on the printing telegraph and the microphone. [3]
Francis Blake was born in Needham, Massachusetts on December 25, 1850, the son of Caroline Burling (Trumbull) and Francis Blake, Sr. [1]. In 1879, he invented a carbon microphone for use in the telephone, and patented [2] [3] [4] it shortly after Thomas Edison invented a similar microphone that also used carbon contacts.
This camera also used Nikon F-mount lenses, which meant film photographers could use many of the same lenses they already owned. Digital camera sales continued to flourish, driven by technology advances. The digital market segmented into different categories, Compact Digital Still Cameras, Bridge Cameras, Mirrorless Compacts and Digital SLRs.
First patent on foil electret microphone by G. M. Sessler and J. E. West (pages 1 to 3) West was born on February 10, 1931, in Farmville, Prince Edward County, Virginia as the elder of two children to Samuel Edward and Matilda West. He was born in his maternal grandfather's house because the local hospital would not admit Black people.
1986 – Kodak scientists invent the world's first megapixel sensor. 1987 Canon releases the first camera for its fully electronic autofocus EF lens mount, the EOS 650 [20] Photoshop developed by Thomas and John Knoll; 1990 — Adobe Photoshop 1.0 released on February 19, for Macintosh exclusively. [21] [22] 1992 – Photo CD created by Kodak. [23]
The charge-coupled device (CCD) is the image-capturing optoelectronic component in first-generation digital cameras. It was invented in 1969 by Willard Boyle and George E. Smith at AT&T Bell Labs as a memory device. The lab was working on the Picturephone and on the development of semiconductor bubble memory. Merging these two initiatives ...
On August 1, 1966, the Browns submitted a patent application for their invention. Their attorneys were Polacheck and Saulsbury, a New York firm. [1]The invention consisted, at the door, of an electrically controlled lock, several lensed peepholes with covers, a vertically sliding video scanner (camera) and controlling motors, loudspeaker and microphone as well as associated electronics ...