PATENT DISCLOSURE

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP89B00709R000400890002-6
• Release Decision: RIPPUB
• Original Classification: S
• Document Page Count: 4
• Document Creation Date: December 27, 2016
• Document Release Date: December 6, 2011
• Sequence Number: 2
• Publication Date: November 24, 1959
• Content Type: MEMO

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Declassified in Part - Sanitized Copy Approved for Release 2011/12/06: CIA-RDP89B00709R000400890002-6
DPD-7979-59
24 November 1959
ORAI'I=UM FOR :I I TSS/APD
SUJBTECT : Patent Disclosure
1. Attached is a disclosure of an invention submitted by
Westinghouse Electric Company under our Contract No. TA-3034
for development of an avoidance system.
2. The contractor has advised that it does not intend to
file a patent application on this disclosure.
3. Please review this disclosure and advise whether or not
you recommend that the Agency file a patent application on the
"Wide Range AFC."
Contracting Officer
25X1,-
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Declassified in Part - Sanitized Copy Approved for Release 2011/12/06: CIA-RDP89B00709R000400890002-6
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Declassified in Part - Sanitized Copy Approved for Release 2011/12/06: CIA-RDP89B00709R000400890002-6 -)TAT
.PATENT, DISCLOSURE TRANSMITTAL SHEET
R-... 38319
STAT
TO: PLANT I WORKS, PATENT DEPARTMENT
(INSERT C. PITTSBURGH. SO. PHILA.. OR eLOOMrImLD)
DISCLOSURE BOOK NO.
PAGE NO.
TRANSMITTAL DATE
5311-
9
5/16/S8
WORKS
DIVISION
DEPARTMENT
FROM: !1AI,TIUOF;E
AIR ARM DIVISION
SURVEILTA CE PADAR
You should send this sheet and your disclosure direct to the Patent Department.
INVENTOR PLEASE NOTE-
Please give all information requested.
1. Was this invention made, or first used, in the performance of a Government contract? If so, give
GOVERNMENT WESTINGHOUSE 3C ~ro 5
ORD
NO
CONTRACT NO7A 10 3 4 GEN
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2. Was this invention made on a
Standard Development Order ^ LRMD Order ^ Customer Order p' Or otherwise ^
3. Has invention been tried experimentally? ' V 6
4. Will it be used on Standard Apparatus ^ Particular Job ^ Shop or Lob ^ Or no dedslon
5. When will It first be built and shipped?
6. Give names and dates of existing or proposed printed publications disclosing invention:
7. Give related Disclosure Numbers
8. Where necessary, please amplify above answers in space below, and give engineering or commercial bearing an our posi-
tion in its field or on related apparatus.
11435 l Ftyip AfticAr-jon n
' L , PATENT DEPARTMENT
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OCT `7 8 .
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SIGNATURE OF INVENTOR(S)
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Declassified in Part - Sanitized Copy Approved for Release 2011/12/06: CIA-RDP89B00709R000400890002-6 -
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Declassified in Part - Sanitized Copy Approved for Release 2011/12/06: CIA-RDP89B00709R000400890002-6
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DISGIOSURE TO PATENT MAXIM
ENT~P~~
Book No. 53U
(WORK/COPY SHEET) 4to w6
INP?RTANTI04ftDA EAMpMAVfE+ITMEfffo. R/~~/
ATT IO/MAL akfTcNSS no aZICRSP 1Of 4'
PERMANENT LOCATION TMgafo,.
,4Y 16, 1958
e Ir~ MITT U ? TT.ew IN TM.
TIT E: WIDE RANGE AYC
This disclosure proposes simple light weight wide range AFC. Two loops
are provided to maintain the local oscillator at its proper frequency relative
to the transmitter. One loop electronic in nature consisting of a standard I.F.
phanastron circuit corrects for mnall frequency errors. This is fully explained
in the literature and merits no further er_planation.
The other loop consisting of electro mechanical elements corrects for
gross frequency variations. This loop contains the unique features claimed by
this disclosure.
Previous systems have utilized the error voltages generated in the I.F.
amplifier-discriminator circuits to correct both the electronic as well as the
mechanical tuning of the L.0. This has several disadvantages - mainly complexity
and chance of improper lock-up due to compensating errors in both loops. In this
system the mechanical tuning is detenrtiinod by the power output of the klystron.
It should be emphasized that it is not necessary to closely maintain mechanical
tuning since small changes can be compensated for by the electronic loop.
The proposed electromechanical loop is as shown in Fig. 1. The output
from a 'nicrowavo detector e.g., crystal, sampling the L.O. power, is fed into
one channel of a differential amplifier. The other input is obtained from a
reference either fixed or determined directly from the maximum detected power
level. The latter could be accomplished by, various circuits such as a capacitor
charged through a rectifier. The output from the amplifier is used to control
both a relay and a reversing; switch as shown.
When the signal level in channel 1 drops somewhat below that of 2 the
relay closes energizingg~,tthe tuning motor. In the event the level in 1 drops
considerably below,.1}~ii~C f 2 not only does the relay close but also the reversing
.switch is tripped. switches are provided at each end of the mechan ical
range to automatically reverse the tuning motor. By proper adjustment of the
above parameters the klystron can be maintained at or near its maximum power
output.
This system differs from previous ones in that the mechanical loop is
simpler. As explained above it is not necessary for it to be highly accurate..
This results in a consequent reduction in cosh size and weight and an increase
in reliability and serviceability.
STAT
I
In approximately 50% of the time the.klystron cavity will be driven in the correct
direction so as to return the L.O. to its maximum power condition. For the other
times,, where the drive is in the wrong direction the &0, power will drop off to tb
point (this level should be set so as to maintain favorable receiver noise figure)
.where the unbalance in the differential amplifier will be great enough to trip
the reversing relay. Subsequently the motor will then return the L.O. to the
peak of its mode*
PULL NAME OP INVENTOR
DATE EXPLAINED AND
UNDE VTOO DY ME
DAT EXPLAINED AND
UNDERSTOOD DY ME
M,AAE- 2
eeTENECFIVED
alzrV ~, t~GLLL1:Jl.
DATE OF
DATE OP CONCEPTION
STAT
If Declassified in Part - Sanitized Copy Approved for Release 2011/12/06: CIA-RDP89B00709R000400890002-6 J
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Declassified in Part - Sanitized Copy Approved for Release 2011/12/06: CIA-RDP89B00709R000400890002-6 - ==--