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Nathan B. Stubblefield and his wireless telephone
Abstract
In the Winter 1970–71 issue, the Journal published an article on radio's technological “pre‐history” which included mention of Kentucky melon farmer and sometime inventor Nathan B. Stubblefield. The following pages offer a more detailed discussion of Stubblefield's experimental work in radio and seek to answer the question of whether he was an important innovator in radio, or just another whose fringe effort contributed little to the mainstream of radio development. Stubblefield's work, much of it before Marconi became active in wireless development, is a good example of the many small‐town American inventors in this field who took out patents and tried to make a commercial success out of something their backers seldom fully understood. Stubblefield's eventual commercial failure is also, unfortunately, typical of the fate of these inventors. Thomas W. Hoffer currently is an instructor in the Department of Communication Arts at the University of Wisconsin while completing work on his doctorate.
... In-car auditory information acquisition is originated from the car phone. After the evolution of wired to wireless telephony [42][43][44], the car phone can be regarded as the first medium in the cabin, which could enable occupants to exchange information during commuting. Until now, the function of a car phone still exists and becomes a standard module in vehicle-mounted media scenarios. ...
Recently, the commercial potentials and practical values of Mobility as a Service (MaaS) have been witnessed for sustainable development of smart cities in the field of intelligent transportation. Driven by the Internet of Vehicles (IoV), vehicles gradually become mobile living spaces to satisfy diverse demands of occupants, where the media functionalities, scenario scopes, and user engagements can be all expended dramatically. In the era of 5G/B5G, the intelligent connected vehicles are considered as super media because of the improved In-Vehicle Infotainment (IVI). In this paper, relying on the advanced communication and intelligent techniques, we investigate the IoV-based vehicle-mounted media scenarios and construct IVI solutions for the MaaS. Firstly, we propose the characteristics of vehicle-mounted media scenarios and present the IVI evolution from the aspects of hearing, vision and multi-sensory media services. Secondly, we point out the main features and limitations of IoV-based IVI in 3G/4G. Finally, exploring the potential of super media, both the linkage display and IVI collaborative modes in vehicle-centric media scenarios are introduced as IVI solutions for the MaaS in 5G-V2X and beyond, which intend to further improve the audio-visual experiences of occupants and observers in urban environments.
Although the Journal of Broadcasting commemorated broadcasting's 50th anniversary more than a decade ago (see the Fall, 1959 issue), it was not until 1970 that the golden anniversary of American broadcasting was celebrated nationwide. Yet, before the initial broadcasts of KDKA and WWJ in 1920, there was almost another half‐century of technological development. This technological base consisted of experimental work in both wired and wireless telephony, and included many “dead ends” as well as many developments that led to the fruition of broadcasting.In the following article, Elliot Sivowitch, of the Division of Electricity and Nuclear Energy of the Smithsonian Institution, covers the high points of the “pre‐history” of broadcasting, with emphasis on developments in the United States prior to 1920. A forthcoming issue of the Journal will feature a companion article, tracing developments of the first decade of broadcasting itself through analysis of the history of significant early stations, which is being prepared by Joseph E. Baudino of the Westinghouse Broadcasting Company.
Stubblefield Papers. A Murray, Kentucky, AM radio sta-tion was licensed by the FCC in 1948, and
- Lucas
- Op
Lucas, op. cit. 40 Letter of Conn Linn to Vernon Stubblefield, Murray, Kentucky, dated September 1, 1950. Stubblefield Papers. A Murray, Kentucky, AM radio sta-tion was licensed by the FCC in 1948, and, in memory of Nathan B. Stubble-field, the station signed on with the call "WNBS."
Wireless Telephony,”. a paper presented to the 25th annual convention of the American Institute of Electrical Engineers
- R A Fessenden
Principles of Wireless Telegraphy
- George W Pierce
- Fawcett Waldon
- Collins A. Frederick