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1. |
Record Nr. |
UNISA996279410403316 |
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Titolo |
IEEE Std 746-1984 : IEEE Standard for Performance Measurements of A/D and D/A Converters for PCM Television Video Circuits / / IEEE |
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Pubbl/distr/stampa |
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[Place of publication not identified] : , : IEEE, , 1984 |
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ISBN |
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Descrizione fisica |
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Disciplina |
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Soggetti |
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Pulse-code modulation - Standards |
Analog-to-digital converters |
Television circuits |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Sommario/riassunto |
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This standard describes methods for measuring ther performance of uniformly coded alnalog-to-digital (A/D) coverters and digital-to-analog (D/A) converters for pulse code modulation (PSM) television video signals. Excluded are A/D and D/A converters that employ nonlinear processes for bit reduction television circuits, as for example, sub-Nyquist encoding, differential PCM, transform coders, etc. This standard is intended primarily for CCIR System M, 525-line/60-field television circuits. The performance to be measured should be relevant to the subjective quality of the television picture. Measurements not related to the quality of the video signal are excluded from this standard. Where possible, television type test signals are used to accomodate clamping circuits in the converters. |
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2. |
Record Nr. |
UNINA9910163871703321 |
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Autore |
McCulloch Merran |
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Titolo |
The Ovimbundu of Angola / / Merran McCulloch |
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Pubbl/distr/stampa |
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London ; ; New York : , : Routledge, , 2017 |
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ISBN |
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1-315-30501-1 |
1-315-30503-8 |
1-315-30502-X |
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Descrizione fisica |
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1 online resource (63 pages) : illustrations |
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Collana |
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Ethnographic Survey of Africa ; ; Volume 28 |
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Disciplina |
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Soggetti |
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Herero (African people) - Religion |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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First published in 1952 by the International African Institute. |
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Nota di bibliografia |
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Includes bibliographical references. |
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Nota di contenuto |
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Grouping and demography -- Physical environment -- Traditions of origin and history -- Language -- Physical appearance and dress -- Main features of economy -- Social organisation and political structure -- Religion and magic -- The life cycle. |
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Sommario/riassunto |
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Routledge is proud to be re-issuing this landmark series in association with the International African Institute. The series, published between 1950 and 1977, brings together a wealth of previously un-co-ordinated material on the ethnic groupings and social conditions of African peoples. Concise, critical and (for its time) accurate, the Ethnographic Survey contains sections as follows: Physical Environment Linguistic Data Demography History & Traditions of Origin Nomenclature Grouping Cultural Features: Religion, Witchcraft, Birth, Initiation, Burial Social & Political Organization: Kinship, Marriage, Inheritance, Slavery, Land Tenure, Warfare & Justice Economy & Trade Domestic Architecture Each of the 50 volumes will be available to buy individually, and these are organized into regional sub-groups: East Central Africa, North-Eastern Africa, Southern Africa, West Central Africa, Western Africa, and Central Africa Belgian Congo. The volumes are supplemented with maps, available to view on routledge.com or available as a pdf from the publishers. |
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