United States Patent [19] [ii] Patent Number: 4,821,221
Kaneko [45] Date of Patent: Apr. 11, 1989
[54] COMPUTER TERMINAL DEVICE FOR PRODUCING DIFFERENT TYPES OF BUZZER SOUNDS
[75] Inventor: Masahiko Kaneko, Kawagoe, Japan
[73] Assignee: Citizen Watch Co., Ltd., Tokyo, Japan
[21] Appl. No.: 740,207
[22] Filed: May 31,1985
[30] Foreign Application Priority Data
Jun. 4, 1984 [JP] Japan 59-113018
[51] Int. CI.4 G06F 3/16; G10L 5/02
[52] U.S. CI 364/710.13; 381/51;
364/710.12
[58] Field of Search 364/710, 513.5, 405,
364/200 MS File, 900 MS File; 381/51;
340/384 E
[56] References Cited
U.S. PATENT DOCUMENTS
4,179,584 12/1979 Tanimoto et al 364/710
4,185,169 1/1980 Tanimoto et al 364/710
4,211,892 7/1980 Tanimoto et al ...381/51
4,354,246 10/1982 Fujisawa 364/709
4,429,367 1/1984 Ikeda 381/51
4,431,866 2/1984 Toyomura 381/51
4,500,971 2/1985 Futaki et al 364/513.5
4,516,200 5/1985 Thompson 364/200
4,630,222 12/1986 Yoshida et al 381/51
4,653,100 3/1987 Barnett et al 381/52
Primary Examiner—Gary V. Harkcom
Assistant Examiner—Tan V. Mai
Attorney, Agent, or Firm—Lowe, Price, LeBlanc,
Becker & Shur
[57] ABSTRACT
A plurality of buzzer sound data obtained by converting different types of intermittent buzzer sounds to numerical values is stored in a buzzer source data memory. Coded data received from a host apparatus by a receiver is decoded by a receiver. A decoding result is stored in an index register. The buzzer sound data is read out from the buzzer sound data memory in response to the decoding result data in accordance with the instruction supplied from the host apparatus through a readout. The intermittent buzzer sounds corresponding to the readout buzzer sound data are produced by a buzzer unit.
4 Claims, 3 Drawing Sheets
