Foremost among the problems in semiconductor switching network implementations is the difficulty of fabricating a semiconductor crosspoint which duplicates the characteristics of metallic crosspoin
Holography, or wavefront reconstruction photography, was first demonstrated by Gabor1, 2> 3 over fifteen years ago, and it has been the subject of increased investigation over the last five year
T H E BELL SYSTEM T E C H N I C A L J O U R N A L , SEPTEMBER 1070 (a + 2c) E,(()) + cEt (29) From eauations (5) and (7) (---~Y a + c / = t a n d/2 t a i l 0 o / 2 .
A number of articles 1-4 have described the use of horizontal redundancy removal techniques to reduce the transmission rate required for coded Picturephone® signals to 6.312 Mb/s.
BRIEF Interpolation of Data With Continuous Speech Signals By M. R. SCHROEDER and S. L.
the afternoon of April 24, 1970. The peak measured 15.3-GHz signal attenuation and the corresponding 16-GHz radiometer record were 9.8 dB and 10.6 dB respectively.) REFERENCES 1. Wilson, R.
1. Gabor, D., A New Microscope Principle, Nature, 161, May, 1948, pp. 777-778. 2. Gabor, D., Microscopy by Reconstructed Wave-Fronts, Proc. Roy. Soc. (London), A197, July, 1949, pp. 454-487. 3.
Frequency-shift-position (FSP) modulation sends a sample x e (0, T) by changing the frequency of a wave from oj0 to wi at the time x.
Low-Elevation-Angle Propagation Effects on COMSTAR Satellite Signals By J. M. TITUS* and H. W. ARNOLD (Manuscript received April 30, 1982) I.
MAC-4: A Single-Chip Microcomputer By W. F. C H O W and W. W.
