H04L27/3433- Modifications of the signal space to increase the efficiency of transmission, e.g.using coset coding, lattice coding, or related schemes in which the constellation is the n - fold Cartesian product of a single underlying two-dimensional constellation reduction of the bit error rate, bandwidth, or average power in which the information is carried by both the individual signal points and the subset to which the individual points belong, e.g. H04L27/3427- Modifications of the signal space to increase the efficiency of transmission, e.g.using coset coding, lattice coding, or related schemes H04L27/3416- Modifications of the signal space to increase the efficiency of transmission, e.g.reduction of the bit error rate, bandwidth, or average power H04L27/3405- Modifications of the signal space to increase the efficiency of transmission, e.g.quadrature-amplitude modulated carrier systems H04L27/34- Amplitude- and phase-modulated carrier systems, e.g.H04L27/32- Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26.H04L- TRANSMISSION OF DIGITAL INFORMATION, e.g.238000006243 chemical reaction Methods 0.000 description 2.238000000638 solvent extraction Methods 0.000 description 8.230000001276 controlling effect Effects 0.000 claims description 5.230000000875 corresponding Effects 0.000 claims description 6.230000000051 modifying Effects 0.000 claims abstract description 61.230000005540 biological transmission Effects 0.000 title claims abstract description 16.Assignors: SASAKI, EISAKU Application granted granted Critical Publication of US5408499A publication Critical patent/US5408499A/en Anticipated expiration legal-status Critical Status Expired - Lifetime legal-status Critical Current Links Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Priority to JP5005331A priority Critical patent/JP2845705B2/en Priority to JP5-005331 priority Application filed by NEC Corp filed Critical NEC Corp Assigned to NEC CORPORATION reassignment NEC CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Original Assignee NEC Corp Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number US08/181,033 Inventor Eisaku Sasaki Current Assignee (The listed assignees may be inaccurate. Google Patents Multilevel code for transmission deviceÄownload PDF Info Publication number US5408499A US5408499A US08/181,033 US18103394A US5408499A US 5408499 A US5408499 A US 5408499A US 18103394 A US18103394 A US 18103394A US 5408499 A US5408499 A US 5408499A Authority US United States Prior art keywords decoding level signal output phase Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google Patents US5408499A - Multilevel code for transmission device US5408499A - Multilevel code for transmission device
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