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  2. Noise-cancelling headphones - Wikipedia

    en.wikipedia.org/wiki/Noise-cancelling_headphones

    Simplified graphical depiction of active noise reduction. To cancel the lower-frequency portions of the noise, noise-cancelling headphones use active noise control.A microphone captures the targeted ambient sounds, and a small amplifier generates sound waves that are exactly out of phase with the undesired sounds.

  3. Active noise control - Wikipedia

    en.wikipedia.org/wiki/Active_noise_control

    Christopher E. Ruckman's ANC FAQ (This page was created in 1994 and maintained until approximately 2010, but is no longer active.) Waves of Silence: Digisonix, active noise control, and the digital revolution Archived 2016-03-04 at the Wayback Machine

  4. Sharper Image - Wikipedia

    en.wikipedia.org/wiki/Sharper_Image

    The Sharper Image was founded by Richard Thalheimer. The company started in 1977 as a catalog business to sell jogging watches. [4] Later, through their catalog, [5] The Sharper Image expanded its product assortment to include high-end futuristic gadgets, electronics, massage chairs, and air purifiers. The Sharper Image eventually expanded to ...

  5. Richard Thalheimer - Wikipedia

    en.wikipedia.org/wiki/Richard_Thalheimer

    He is the founder and former CEO of the US-based consumer brand, The Sharper Image. He established The Sharper Image in 1977, after taking an interest in watches. The early watch designs were inspired by a $69 watch that he owned and advertised his watch range in Runner's World magazine. The success of the watch advertisement led to the ...

  6. Ancillary data - Wikipedia

    en.wikipedia.org/wiki/Ancillary_data

    Ancillary data (commonly abbreviated as ANC data), in the context of television systems, refers to a means which by non-video information (such as audio, other forms of essence, and metadata) may be embedded within the serial digital interface. Ancillary data is standardized by SMPTE as SMPTE 291M: Ancillary Data Packet and Space Formatting.

  7. File:SharperImageLogo.svg - Wikipedia

    en.wikipedia.org/wiki/File:SharperImageLogo.svg

    Sharper Image; Metadata. This file contains additional information, probably added from the digital camera or scanner used to create or digitize it.