# US 4,813,330 A · Coded card for use in a melody playing apparatus

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- Number: US 4,813,330 A
- Document ID: US4813330A
- Status: Granted
- Kind: A
- Application number: 07/071,916
- Filed: 1987-07-10
- Granted: 1989-03-21
- Earliest claimed: 1985-08-30
- Assignees: Quantime, Inc.
- Inventors: Robin H. Hines; Michael R. Glasscock; D. Bruce Johnson
- Web page: https://patentgrep.com/patent/US4813330A

## CPC

- G10H 1/26: for automatically producing a series of tones
- G10H: ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE

## Abstract

A coded card for use in a melody playing apparatus. The coded card has four quadrants, each quadrant having a different melody therein. A synchronization code is encoded down the center of the card between alternates ones of the quadrants. By alternately rotating and turning the card over, each of the four quadrants with different melodies and the synchronization code will appear at a same predetermined quadrant position. Therefore, when playing on the melody playing apparatus, each of the melodies can be decoded thereby.

## Claims

### Claim 1

A coded card for use in a melody playing apparatus which decodes said coded card, said coded card having four quadrants with each quadrant having a different melody coded therein, and a synchronization code encoded down the center of the card, between alternate ones of said quadrants, said card constructed such that by alternately rotating and turning the card over each of the four quadrants with different melodies and said synchronization code appears at a same predetermined quadrant position with respect to the melody playing apparatus, thus each of the melodies can be decoded by the melody playing apparatus.

### Claim 2 (depends on 1)

The coded card of claim 1, wherein said coded card comprises a card having punched holes, said punched holes representing said coding.

### Claim 3

A coded card for use with a melody playing apparatus, comprising:
an operative surface longitudinally divided down a center thereof by a synchronization code, and having four quadrants, two on each side of said synchronization code, each said quadrant extending from said synchronization code to an edge of said operative surface,
four melodies being encoded in said four quadrants, respectively, each said melody being on a predetermined same side of said synchronization code when said card is turned in a correct direction to read said each melody.

### Claim 4 (depends on 3)

A card as in claim 3 where said synchronization code and melody code are both formed by holes in said card.