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2. QR code - Wikipedia

   en.wikipedia.org/wiki/QR_Code

   The QR code system was invented in 1994, at the Denso Wave automotive products company, in Japan. [5] [6] [7] The initial alternating-square design presented by the team of researchers, headed by Masahiro Hara, was influenced by the black counters and the white counters played on a Go board; [8] the pattern of position detection was found and determined by applying the least-used ratio (1:1:3 ...

3. Aztec Code - Wikipedia

   en.wikipedia.org/wiki/Aztec_Code

   The total matrix capacity for a full symbol can be calculated as (112+16*L)*L for a full Aztec code and (88+16*L)*L for a compact Aztec code, where L is the symbol size in layers. [4] As an example, the total matrix capacity of a compact Aztec code with 1 layer is 104 bits.

4. High Capacity Color Barcode - Wikipedia

   en.wikipedia.org/wiki/High_Capacity_Color_Barcode

   High Capacity Color Barcode ( HCCB) is a technology developed by Microsoft for encoding data in a 2D "barcode" using clusters of colored triangles instead of the square pixels conventionally associated with 2D barcodes or QR codes. [ 1] Data density is increased by using a palette of 4 or 8 colors for the triangles, although HCCB also permits ...

5. Single-ended primary-inductor converter - Wikipedia

   en.wikipedia.org/wiki/Single-ended_primary...

   The single-ended primary-inductor converter (SEPIC) is a type of DC/DC converter that allows the electrical potential at its output to be greater than, less than, or equal to that at its input. The output of the SEPIC is controlled by the duty cycle of the electronic switch (S1).

6. Ćuk converter - Wikipedia

   en.wikipedia.org/wiki/Ćuk_converter

   Comparison of non-isolated switching DC-to-DC converter topologies: Buck, Boost, Buck-Boost, Ćuk. The input is left side, the output with load is right side. The switch is typically a MOSFET, IGBT, or BJT transistor. The Ćuk converter [1] (Serbo-Croatian:, English: / ˈ tʃ uː k /) is a type of buck-boost converter with low ripple current. [2]

7. Zamzar - Wikipedia

   en.wikipedia.org/wiki/Zamzar

   Zamzar is an online file converter and compressor, created by brothers Mike and Chris Whyley in England in 2006. [ 1][ 2] It allows users to convert files online, without downloading a software tool, and supports over 1,200 different conversion types. [ 3] Since its formation, the service has converted over 510 million files for users [ 4] from ...