# Question 4.1: Determine the UPC label structure for the digit 0....

Determine the UPC label structure for the digit 0.

Step-by-Step
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From Figure 3a, the binary sequence for the digit 0 in the left-hand character field is 0001101, and the binary sequence for the digit 0 in the right-hand character field is 1110010.
The left-hand sequence is comprised of three successive 0s, followed by two 1s, one 0, and one 1. The three successive 0s are equivalent to a space three bits long. The two 1s are equivalent to a bar two bits long. The single 0 and single 1 are equivalent to a space and a bar, each one bit long.
The right-hand sequence is comprised of three 1s followed by two 0s, a 1, and a 0. The three 1s are equivalent to a bar three bits long. The two 0s are equivalent to a space two bits long. The single 1 and single 0 are equivalent to a bar and a space, each one bit long each. The UPC pattern for the digit 0 is shown in Figure 4.

Question: 4.6

## For the following sequence of bits, identify the ASCII-encoded character, the start and stop bits, and the parity bits (assume even parity and two stop bits): ...

\qquad \qquad \qquad \qquad \qquad \qquad \...
Question: 4.7

## For the following string of ASCII-encoded characters, identify each character (assume odd parity): ...

\qquad \qquad \qquad \qquad \qquad \qquad \...
Question: 4.5

## For a 12-bit data string of 101100010010, determine the number of Hamming bits required, arbitrarily place the Hamming bits into the data string, determine the logic condition of each Hamming bit, assume an arbitrary single-bit transmission error, and prove that the Hamming code will successfully ...

Substituting m = 12 into Equation 2, the number of...
Question: 4.4

## Determine the BCS for the following data and CRC generating polynomials: Data G(x) = x^7 + x^5 + x^4 + x² + x¹ + x^0 = 10110111 CRC P(x) = x^5 + x^4 + x¹ + x^0 = 110011 ...

First, G(x) is multiplied by the number of bits in...
Question: 4.3

## Determine the VRCs and LRC for the following ASCII-encoded message: THE CAT. Use odd parity for the VRCs and even parity for the LRC. ...

The LRC is 00101111 binary (2F hex), which is the ...
Question: 4.2