Linear phase demodulator including a phase locked loop with auxiliary feedback loop

A phase modulated wave that may have no carrier power is demodulated by a phase locked loop including a phase detector for deriving an A.C. data output signal having a magnitude and a phase indicative of the phase of the modulated wave. A feedback loop responsive to the data output signal restores power to the carrier frequency component to the loop. In one embodiment, the feedback loop includes a phase modulator responsive to the phase modulated wave and the data output signal. In a second embodiment, carrier frequency power is restored by differentiating the data output signal and supplying the differentiated signal to an input of a voltage controlled oscillator included in the phase locked loop

Owners\u27 Equivalent Rent and the Consumer Price Index: 30 Years and Counting

The objective of the Consumer Price Index (CPI) is to measure the change in expenditures required to maintain a given standard of living. For expenditures on houses, this leads to a measurement objective that focuses on the shelter services provided by a house over a period of time. A house is a capital asset that provides a flow of services over a substantial period of time, not a one-time consumption item. The Bureau of Labor Statistics (BLS) explored two major approaches to determine how to estimate the cost of shelter services for owner-occupied dwellings. The first approach attempts to estimate the flow of shelter services for an owned dwelling from items related to living in it. This approach is called “user cost” and includes items such as real estate taxes, insurance, and an interest estimate based on the market value of the house. The second approach attempts to estimate the flow of services for an owner dwelling based on market rents for rented dwellings. This research led to a method referred to as “rental equivalence.” This method measures the rate of change in the amount an owner would need to pay in order to rent on the open market. It is based on actual market rents collected from a sample of renter-occupied housing units that are identified to be representative of owner-occupied housing. On October 27, 1981, Commissioner Janet Norwood announced that BLS would convert the CPI for All Urban Consumers (CPI-U) to a rental equivalence measure for homeowner costs, effective with data for January 1983. The CPI for Urban Wage Earners and Clerical Workers (CPI-W) would be converted to the new method, effective with the January 1985 data. This announcement was consistent with general BLS practice of giving at least 1-year’s notice before making a major methodological change. The change also meant that the CPI-U for 1983 and 1984—the first years the CPI was to be used in the escalation of personal income tax brackets and exemptions—would use the new methodology. The longer period of notice for the CPI-W was provided, because the CPI-W continued to be the primary index used in cost-of-living adjustments in collective bargaining agreements and in the escalation of government entitlement payments. It was felt that sufficient time needed to be provided for users to adapt to the change. The transition to the new method was smooth, in large part, owing to the open way it was done and the extensive public information effort

Oscillator with wide dynamic tuning range

Two or more tandem amplifier stages, one of which is tuned, added to a circuit permit tuning an oscillator over frequency range of six decades. Oscillator operates in distributed mode for increased frequency stability. Within practical limitations, stability increases by increasing number of tuned stages

Consumer Price Index Data Quality: How Accurate is the U.S. CPI?

The Consumer Price Index (CPI) is an estimate of the average change in prices over time paid by urban consumers for a market basket of consumer goods and n the United States. The CPI is used extensively in many different ways, including three major uses: to adjust historical data, to escalate federal payments and tax brackets, and to adjust rents and wages. It directly affects the lives of Americans, so it must be as accurate as possible. But how accurate is it? If, for example, the CPI measures annual inflation as 2.3 percent, how confident can we be in that estimate? This issue of BEYOND THE NUMBERS looks at some different ways the U.S. Bureau of Labor Statistics (BLS) has responded to questions about the accuracy and precision of the CPI. The first section examines the sampling error of the CPI, and the second section discusses possible sources of bias in the index

A Five Minute Decision

Frozen section in Surgery 12. Those are familiar words to anyone in the laboratory at one of the local hospitals. Behind those five words lie one of the many services offered to the patients While there. They very seldom if ever hear of it; yet on this may depend the extent of their surgery or their very lives

Circular 57

This is the seventh publication of grain perform ance trials in the Tanana River Valley. The first, published 6 years ago, included the results of spring cereal-variety tests conducted at Fairbanks and Delta Junction during the 1978 and 1979 growing seasons. Beginning in 1980, the variety-test results were annual publications. The length and content of this report is much less than for previous years. This is the result of a cost-saving measure to help cope with a shrinking budget

Circular 52

This is the sixth publication in this format on grain performance trials in the Tanana River Valley. The first, published 5 years ago, included the results o f spring cereal-variety tests conducted at Fairbanks and Delta Junction during the 1978 and 1979 growing seasons. The variety-test results from the 1980, 1981, 1982, and 1983 growing seasons were annual publications. Included in this report are a weather summary, the 1984 variety-test results, and a plant-disease section.Introduction -- Standard Bushel Weights and Conversion from English to Metric Units -- Part I: Climatic Data for and Germplasm Evaluation: Tanana Valley Weather Summary: Table 1: Climatic Data for Delta Junction during the 1984 Growing Season, Table 2: Climatic Data for Fairbanks during the 1984 Growing Season; Barley Performance Trials: Table 3: Long-Term Average and Range of Yields for Barley Standard Varieties Grown at Fairbanks and Delta Junction, 1971-1984, Table 4: Barley Variety Trials Conducted at Delta Junction and Fairbanks during the 1984 Growing Season, Variety Descriptions, Table 5: Barley Varieties Tested at Fairbanks and Delta Junction, 1971-1984 -- Oat Performance Trials: Table 6 : Long-Term Average and Range in Yields for Oat Standard Varieties Grow n at Fairbanks and Delta Junction, 1971-1984, Table 7: Oat Variety Trials Conducted at Delta Junction and Fairbanks during the 1984 Growing Season, Variety Descriptions, Table 8 : Oat Varieties Tested at Fairbanks and Delta Junction, 1971-1984 -- Spring Wheat Performance Trials: Table 9: Long-Term Average and Range in Yields for Wheat Standard Varieties Grown at Fairbanks and Delta Junction, 1971-1984, Table 10: W heat Variety Trials Conducted at Fairbanks and Delta Junction during the 1984 Growing Season -- Variety Descriptions: Table 11: W heat Varieties Tested at Fairbanks and Delta Junction, 1971-1984 -- Part II: Plant-Disease Evaluation: Barley Diseases: Table 12: Summary of Diseases Observed on Barley Varieties under Field Conditions in the Delta-Clearwater Area, Snow M old Disease Com plex on W inter W heat and Lawn G ra s s e s, Diseases on O ther C r o p, Diseases O bserved on Crops during the 1984 Growing Season and T heir S ym ptom