公开(公告)号：USD276722S

公开(公告)日：1984-12-11

申请号：US419768

申请日：1982-09-20

申请人： Lawrence M. Festa

设计人： Lawrence M. Festa

公开(公告)号：US4437539A

公开(公告)日：1984-03-20

申请号：US429540

申请日：1982-09-30

申请人： Lawrence M. Festa

发明人： Lawrence M. Festa

IPC分类号： H04R1/28 ,  H05K5/00

CPC分类号： H04R1/2865

摘要： A speaker enclosure having a rear bass-reflex chamber and a forward mid-range chamber formed within a substantially rectangular housing. A tunnel-bass port is formed in the bottom section of the front wall of the enclosure, the bottom section being angularly disposed and arranged to communicate with the rear bass-reflex chamber. The upper section of the front wall is provided with a mid-range port that communicates with a mid-range chamber. A bass speaker is mounted to a central partition which divides and separates the bass and mid-range chambers. A sealed, self-contained, mid-range speaker is also mounted to the central partition and arranged to disperse mid-range tones by way of the mid-range chamber, so as to exit the mid-range port in unison with the high-frequency tones produced by a tweeter mounted to the upper front wall section. Thus, each speaker disperses its own frequency range in a clear and distinct manner.

摘要翻译： 具有后部低音反射室和形成在基本上矩形的壳体内的前向中间室的扬声器外壳。 隧道低音端口形成在外壳的前壁的底部，底部被角度地设置和布置成与后部低音反射室连通。 前壁的上部设有与中档室连通的中档口。 低音扬声器安装在中央分隔件上，分隔和分离低音和中音室。 一个密封，独立的中档扬声器也安装在中央隔间上，并配置为通过中档室分散中档色调，以便与高档中音喇叭一起离开中档港口， 由安装在上前壁部分的高音扬声器产生的频率音。 因此，每个扬声器以清晰和独特的方式分散其自己的频率范围。

公开(公告)号：USD278235S

公开(公告)日：1985-04-02

申请号：US462472

申请日：1983-01-31

申请人： Lawrence M. Festa

设计人： Lawrence M. Festa

公开(公告)号：US4480153A

公开(公告)日：1984-10-30

申请号：US481723

申请日：1983-04-04

申请人： Lawrence M. Festa

发明人： Lawrence M. Festa

IPC分类号： H04M11/02

CPC分类号： H04M11/02

摘要： A musical apparatus for use with a telephone so as to replace the ringing of the bell by providing a musical tune or melody when the telephone is activated by a caller. The apparatus includes a musical-output circuit, a speaker, and a coded control panel for selecting one of the many programmed tunes or melodies that play for a given length of time until the phone is either answered or the caller hangs up.

摘要翻译： 一种与电话一起使用的音乐装置，以便当电话被呼叫者激活时，通过提供音乐曲调或旋律来代替铃声的振铃。 该设备包括音乐输出电路，扬声器和编码控制面板，用于选择在给定时间长度播放的许多编程的曲调或旋律之一，直到电话被应答或呼叫者挂断为止。