2018 IEEE International Conference on Consumer Electronics Crossword Challenge A t the January 2018 International Conference on Consumer Elec- tronics (ICCE), we challenged our attendees to complete an arcane engineering knowledge cross- word puzzle. Eight teams of ten engi- neers each competed for 1 h during our evening opening welcome party. The teams were randomly selected as people arrived so that people who had never met were tasked with working together. At ICCE, we try to do an annual net- working event so that people can meet and make new friends. Try your skills on the crossword first (and without cheating by searching the Internet). If you are stumped, then feel free to turn to the Internet. At ICCE 2018, we had one of the eight teams get a perfect score, and a second team got all but one of the answers. When you finish your work, turn to page 111 for the answers. Have fun! ACROSS 5 Quality of service in TCP/IP header field 6 HTML link 8 A maximally flat magnitude filter 10 Initials of developers of public key algorithm 11 Effect causing variation in the width of the base in a bipolar junction tran- sistor due to a variation in the applied base-to-collector voltage 13 dash-dot-dash-dot dash-dash- dot-dash 14 A family of linear error-correcting codes that can detect up to two-bit errors or correct one-bit errors 16 Type of klystron with reflector plate instead of output cavity Digital Object Identifier 10.1109/MCE.2018.2797581 Date of publication: 10 April 2018 10 IEEE Consumer Electronics Magazine ^ may 2018 1 2 5 3 4 6 7 8 9 13 10 11 12 14 15 16 17 18 19 20 21 22 18 Chart to map S parameters 19 Merger of AIEE and IRE 20 Last name of inventor of spread spectrum modulation 22 The hypothetical energy level of an electron, such that at thermodynam- ic equilibrium this energy level would have a 50% probability of being occupied at any given time DOWN 1 Popular three-quarter-inch videotape format 2 Y-parameter stability analysis k factor that takes account of load 3 AC version of an SCR 4 A parameter used to limit the band- width of a sampled image signal to avoid the appearance of beat frequen- cy patterns when displaying the image in a discrete display device 6 Impurity introduced into silicon for n-doping as an alternative for phosphorus 7 Negative-resistance diode 9 A variant of heterodyne detection where the local oscillator frequency equals the signal frequency and avoids spurious image responses 12 Antenna named for Japanese in - ventor 14 A particular type of optimal prefix code that is commonly used for loss- less data compression that employs a variable-length code table from the estimated probability for each possi- ble value of the source symbol 15 Mathematical function that reveals the sidebands in an FM-modulated signal 17 Law named for scientist that declares that an induced electromotive force always gives rise to a current whose magnetic field opposes the change in original magnetic flux 21 Microwave laser (continued on page 111)