发明授权
- 专利标题: Address signal generating circuit for a memory circuit
- 专利标题(中): 用于存储电路的地址信号发生电路
-
申请号: US540553申请日: 1983-10-11
-
公开(公告)号: US4587558A公开(公告)日: 1986-05-06
- 发明人: Hiroyuki Sugiyama , Nobuaki Takahashi , Takeshi Shibamoto , Hideo Sato , Yoshiaki Amano , Koji Tanaka
- 申请人: Hiroyuki Sugiyama , Nobuaki Takahashi , Takeshi Shibamoto , Hideo Sato , Yoshiaki Amano , Koji Tanaka
- 申请人地址: JPX
- 专利权人: Victor Company of Japan, Ltd.
- 当前专利权人: Victor Company of Japan, Ltd.
- 当前专利权人地址: JPX
- 优先权: JPX57-181094 19821015
- 主分类号: G11B3/00
- IPC分类号: G11B3/00 ; G06F12/02 ; G11B7/00 ; G11B7/004 ; G11B20/10 ; G11B27/30 ; G11C8/00 ; H04N1/21 ; H04N5/781 ; H04N5/907 ; H04N9/806 ; H04N9/81 ; H04N5/14
摘要:
An address signal generating circuit for a memory circuit comprises a first latch driver for producing a signal corresponding to upper m bits of a 2m-bit address signal which is to be generated, where m is an integer, a second latch driver for producing a signal corresponding to lower m bits of the 2m-bit address signal, a circuit for dividing a 2m-bit signal which has a predetermined value into upper m bits and lower m bits and for alternately producing signals corresponding to the upper and lower m bits, a first adder for adding the value of n bits in the signal which has the predetermined value and the value of upper n bits in an output signal of the first or second latch driver and for producing an n-bit signal, where n is an integer less than m, a second adder for adding the value of m-n bits in the signal which has the predetermined value and lower m-n bits of the output signal of the first or second latch driver and for producing an (m-n)-bit signal, an adding circuit for supplying a carry signal of the first or second adder to the second or the first adder so as to add the carry signal with another input signal of the second or the first adder, and a driver control circuit for controlling the first and second latch drivers to alternately and time-divisionally produce upper m bits of the 2m-bit address signal and lower m bits of the 2m-bit address signal by alternately latching an m-bit output signal of the first and second adders in the first and second latch drivers.
公开/授权文献
- US5588524A Push wheel switch 公开/授权日:1996-12-31
信息查询
IPC分类: