Electrical audio signal processing systems and devices – Monitoring/measuring of audio devices – Loudspeaker operation
Patent
1990-06-07
1993-01-05
Shaw, Dale M.
Electrical audio signal processing systems and devices
Monitoring/measuring of audio devices
Loudspeaker operation
381 52, G10L 300
Patent
active
051778009
ABSTRACT:
A bar code reading speech synthesis device is disclosed which includes means for reading a bar code and accessing internal or external memory to supply speech data to a speech synthesizer device based upon the bar code numerical value. Readily and easily changeable memory modules including synthesized speech data developed to accompany corresponding printed lesson plans are also disclosed. The lesson plans, coupled with the speech synthesizer data, provide audible voicing of words and/or audible spelling of the words from the lesson plan. Various other features included in the speech synthesizer device include automatic power down circuitry, self-diagnostics, volume control, and extended diagnostics for testing the functionality of the device. A base.sub.32 addressing scheme is employed to verify memory data as corresponding with bar codes wanded into the device. An alternate embodiment of the speech synthesizer device includes a serial data link and the hardware capability for downloading serial data from an external source and storing the data in a nonvolatile memory, such as nonvolatile RAM (Random Access Memory) (NVRAM) (Non-Volatile Random Access Memory) or an EEPROM (Electrically Eraseable Programmable Read Only Memory), thus eliminating the need to change memory modules.
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Aisi, Inc.
Doerrler Michelle
Shaw Dale M.
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