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Return-to-zero

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For bipolar return-to-zero (bipolar RZ), a binary one is encoded as +V volts, a binary zero is encoded as −V volts, and 0 volt is used to provide padding and separation between bits.
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serial infrared (SIR) physical layer specification. Required bandwidth for this kind of modulation is: BW = R(data rate).
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Return-to-zero, inverted (RZI) is a method of mapping for transmission. The two-level RZI signal has a
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resulting in “baseline wander” during long strings of 0 or 1 bits, just like the line code
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The "zero" between each bit is a neutral or rest condition, such as a zero amplitude in
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Although return-to-zero (RZ) contains a provision for synchronization, it still has a
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representing a 1 bit and the other significant condition representing a 0 bit.
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Line code in which the signal value returns to zero between each pulse
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in which the signal drops (returns) to zero between each
147: 259: 647: 273:Bipolar return-to-zero encoding is used by the 151:The binary signal is encoded using rectangular 361: 239: 71:. Unsourced material may be challenged and 368: 354: 135:Learn how and when to remove this message 146: 235:Return-to-zero in optical communication 14: 648: 460:Differential Manchester/biphase (Bi-φ) 321: 440:Non-return-to-zero, level (NRZ/NRZ-L) 349: 285:Other line codes that have 3 states: 445:Non-return-to-zero, inverted (NRZ-I) 69:adding citations to reliable sources 36: 260:Bipolar return-to-Zero (bipolar RZ) 24: 315: 25: 672: 562:Carrier-suppressed return-to-zero 450:Non-return-to-zero, space (NRZ-S) 324:"Digital Magnetic Tape Recording" 415: 41: 379:(digital baseband transmission) 334:from the original on 2018-07-02 32:Return to Zero (disambiguation) 567:Alternate-phase return-to-zero 155:with polar return-to-zero code 13: 1: 310: 536:Eight-to-fourteen modulation 322:Savard, John J. G. (2018) . 7: 280: 10: 677: 618:Pulse-amplitude modulation 263: 198:pulse-amplitude modulation 153:pulse-amplitude modulation 29: 575: 554: 468: 424: 413: 384: 613:Pulse modulation methods 496:Alternate mark inversion 240:Return to zero, inverted 608:Ethernet physical layer 214:frequency-shift keying 156: 624:Pulse-code modulation 541:Delay/Miller encoding 218:significant condition 150: 630:Serial communication 603:Digital transmission 506:Coded mark inversion 65:improve this article 30:For other uses, see 635:Category:Line codes 516:Hybrid ternary code 476:Conditioned diphase 469:Extended line codes 435:Return to zero (RZ) 290:Hybrid ternary code 555:Optical line codes 229:non-return-to-zero 206:phase-shift keying 191:non-return-to-zero 176:telecommunications 157: 643: 642: 501:Modified AMI code 392:Unipolar encoding 145: 144: 137: 119: 16:(Redirected from 668: 531:64b/66b encoding 419: 397:Bipolar encoding 370: 363: 356: 347: 346: 342: 340: 339: 295:Bipolar encoding 266:bipolar encoding 248:(shorter than a 140: 133: 129: 126: 120: 118: 84:"Return-to-zero" 77: 45: 37: 21: 676: 675: 671: 670: 669: 667: 666: 665: 646: 645: 644: 639: 571: 550: 526:8b/10b encoding 464: 420: 411: 380: 374: 337: 335: 318: 316:Further reading 313: 283: 268: 262: 242: 237: 141: 130: 124: 121: 78: 76: 62: 46: 35: 28: 23: 22: 15: 12: 11: 5: 674: 664: 663: 658: 641: 640: 638: 637: 632: 627: 621: 615: 610: 605: 600: 598:Digital signal 595: 590: 585: 576: 573: 572: 570: 569: 564: 558: 556: 552: 551: 549: 548: 543: 538: 533: 528: 523: 521:6b/8b encoding 518: 513: 511:MLT-3 encoding 508: 503: 498: 493: 488: 483: 478: 472: 470: 466: 465: 463: 462: 457: 452: 447: 442: 437: 431: 429: 422: 421: 414: 412: 410: 409: 407:Mark and space 404: 399: 394: 388: 386: 382: 381: 373: 372: 365: 358: 350: 344: 343: 317: 314: 312: 309: 308: 307: 302: 300:MLT-3 encoding 297: 292: 282: 279: 264:Main article: 261: 258: 241: 238: 236: 233: 208:(PSK), or mid- 170:) describes a 160:Return-to-zero 143: 142: 49: 47: 40: 26: 9: 6: 4: 3: 2: 673: 662: 659: 657: 654: 653: 651: 636: 633: 631: 628: 625: 622: 619: 616: 614: 611: 609: 606: 604: 601: 599: 596: 594: 591: 589: 586: 584: 581: 578: 577: 574: 568: 565: 563: 560: 559: 557: 553: 547: 544: 542: 539: 537: 534: 532: 529: 527: 524: 522: 519: 517: 514: 512: 509: 507: 504: 502: 499: 497: 494: 492: 489: 487: 484: 482: 479: 477: 474: 473: 471: 467: 461: 458: 456: 453: 451: 448: 446: 443: 441: 438: 436: 433: 432: 430: 428: 423: 418: 408: 405: 403: 402:On-off keying 400: 398: 395: 393: 390: 389: 387: 385:Main articles 383: 378: 371: 366: 364: 359: 357: 352: 351: 348: 333: 329: 325: 320: 319: 306: 303: 301: 298: 296: 293: 291: 288: 287: 286: 278: 276: 271: 267: 257: 255: 251: 247: 232: 230: 226: 221: 219: 215: 211: 207: 203: 199: 194: 192: 188: 187:self-clocking 184: 180: 177: 173: 169: 165: 161: 154: 149: 139: 136: 128: 117: 114: 110: 107: 103: 100: 96: 93: 89: 86: –  85: 81: 80:Find sources: 74: 70: 66: 60: 59: 55: 50:This article 48: 44: 39: 38: 33: 19: 579: 434: 336:. Retrieved 327: 284: 272: 269: 243: 225:DC component 222: 200:(PAM), zero 195: 167: 163: 159: 158: 131: 122: 112: 105: 98: 91: 79: 63:Please help 51: 377:Line coding 250:clock cycle 202:phase shift 661:Line codes 650:Categories 455:Manchester 427:line codes 338:2018-07-16 311:References 193:format. 125:April 2018 95:newspapers 656:Encodings 580:See also: 328:quadibloc 275:ARINC 429 210:frequency 172:line code 52:does not 593:Bit rate 583:Baseband 332:Archived 281:See also 174:used in 179:signals 109:scholar 73:removed 58:sources 546:TC-PAM 425:Basic 111:  104:  97:  90:  82:  626:(PCM) 620:(PAM) 277:bus. 246:pulse 183:pulse 116:JSTOR 102:books 588:Baud 491:2B1Q 486:4B5B 481:4B3T 305:4B3T 254:IrDA 88:news 56:any 54:cite 212:in 204:in 168:RTZ 166:or 67:by 18:RZI 652:: 330:. 326:. 231:. 164:RZ 369:e 362:t 355:v 341:. 162:( 138:) 132:( 127:) 123:( 113:· 106:· 99:· 92:· 75:. 61:. 34:. 20:)

Index

RZI
Return to Zero (disambiguation)

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pulse-amplitude modulation
line code
telecommunications
signals
pulse
self-clocking
non-return-to-zero
pulse-amplitude modulation
phase shift
phase-shift keying
frequency
frequency-shift keying
significant condition
DC component

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