US PATENT SUBCLASS 369 / 135
.~.~ Specified structure of electrical transducing assembly

Current as of: June, 1999
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369 /   HD   DYNAMIC INFORMATION STORAGE OR RETRIEVAL

99  DF  SPECIFIC DETAIL OF INFORMATION HANDLING PORTION OF SYSTEM {4}
127  DF  .~ Mechanical modification or sensing of storage medium {6}
135.~.~ Specified structure of electrical transducing assembly {11}
136  DF  .~.~.~> Multichannel (stereo cartridge) {2}
140  DF  .~.~.~> Plural styli
141  DF  .~.~.~> Plural alternative or with signal handling adjunct
142  DF  .~.~.~> Stylus controlled optical element
143  DF  .~.~.~> Electron tube
144  DF  .~.~.~> Electret or piezoelectric
145  DF  .~.~.~> Semiconductive
146  DF  .~.~.~> Magnetic field variation (e.g., magnetostrictive) {2}
150  DF  .~.~.~> Capacitive or electrolytic liquid
151  DF  .~.~.~> Electrostatic or capacitive
152  DF  .~.~.~> Variable resistance

DEFINITION

Classification: 369/135

Specified structure of electrical transducing assembly:

(under subclass 127) Subject matter including some structural detail of the storage element modifying or sensing device which includes the combination of a complete electricity-force conversion element and a storage medium coupling element.

(1) Note. This may include the subcombination of such a modulating or sensing device, of itself.

(2) Note. Where the modulating or sensing device is described only by name, e.g., "a stylus driving a pickup", without any detail thereof, classification is determined by the combination of such a nominally recited device with the other elements recited.

(3) Note. Where a tone arm is recited with details of the modulating or sensing device, classification is in this or one of the indented subclasses; however, such recitation in further combination with storage medium support or motion production, or with particular circuitry will be classified in the appropriate preceding subclass.

SEE OR SEARCH THIS CLASS, SUBCLASS:

170+, for stylus coupling devices, in general.

215+, and 244+, for tone arm devices absent detail of the modifying or sensing device.