Portable electronic memorandum device

[54] PORTABLE ELECTRONIC MEMORANDUM DEVICE

[75] Inventor: Fumikazu Aihara, Kita, Japan

[73] Assignee: Casio Computer Co., Ltd., Tokyo, Japan

[21] Appl. No.: 537,495
[22] Filed: Jun. 12,1990

Related U.S. Patent Documents

Reissue of:

[64] Patent No.: 4,751,668

Issued: Jun. 14, 1988

Appl. No.: 711,077
Filed: Mar. 12,1985

[30] Foreign Application Priority Data

Mar. 23, 1984 [JP] Japan 59-54388

Mar. 28, 1984 [JP] Japan 59-58340

[51] Int. CI.' G09G 3/00; G06F 3/14

[52] U.S. CI 395/144; 364/2;

364/710.09; 364/DIG. 2; 364/928; 364/927.2; 364/927; 364/927.5; 364/960; 364/955; 364/927.7; 364/963; 364/928.5; 345/141

[58] Field of Search 395/250, 144, 162, 164,

395/775, 800, 144; 340/802; 364/2, 710.09, DIG. 2, 928, 927.2, 927, 927.5, 960, 955, 927.7,

967, 928.5

[56] References Cited

U.S. PATENT DOCUMENTS

3,942,157 3/1976 Azure 340/172.5

3,999,050 12/1976 Pitroda 235/152

4,016,542 5/1977 Azure 364/900

4,090,247 5/1978 Martin 364/900

4,117,542 9/1978 Klausner et al 364/900

4,125,871 11/1978 Martin 364/900

4,270,182 5/1981 Asija 364/900

4,279,022 7/1981 Abe 364/900

4,301,511 11/1981 Shimizuetal 364/709

4,354,260 10/1982 Planzo 368/10

4,385,291 5/1983 Piguet 340/712

4,402,056 8/1983 Sado et al 364/900

FOREIGN PATENT DOCUMENTS

1579471 11/1980 United Kingdom .

2048532A 12/1980 United Kingdom .

2056730 3/1981 United Kingdom .

2090031 6/1982 United Kingdom .

2106290 4/1983 United Kingdom .

21280O6A 4/1984 United Kingdom .

2132396A 7/1984 United Kingdom .

2143066 7/1985 United Kingdom .

Primary Examiner—Kevin A. Kriess

Attorney, Agent, or Firm—Frishauf, Holtz, Goodman &

Woodward

[57] ABSTRACT

A portable electronic memorandum device has a memory for storing character data hems. When a switch is operated, all the address areas of the memory are designated so as to sequentially read out all the character data items stored therein. All the character data items are then sequentially displayed on a display. After all the character data items stored in all the address areas are sequentially displayed on the display, the address of the memory is updated by the operation of switches, thus performing an edit operation of the character data items.

24 Claims, 15 Drawing Sheets